66results about "Lithium organic compounds" patented technology

The present invention relates to a method for producing a lithium metal dispersion that can be used to produce solutions of alkyllithium compounds. More specifically, the present invention relates to a method for producing a dispersion of lithium metal in an organic solvent by melting lithium metal and dispersing the molten lithium metal with stirring in an organic solvent having a boiling point of up to 120°C, followed by cooling to produce a dispersion of lithium metal in the organic solvent. The present invention further relates to a dispersion of lithium metal in an organic solvent having a boiling point of up to 120°C, wherein the lithium metal particles have a particle size greater than 300 microns, and to a method for producing an alkyllithium solution using the lithium metal dispersion.

The invention belongs to the technical field of chemical synthesis of semiconductor materials, and particularly relates to a synthesis method of tetra (dimethylamino) titanium, which comprises the following steps: (1) reacting titanium tetrachloride with dimethylamine to generate an intermediate TiClx [N (CH3) 2] 4-x, where x is an integer from 0 to 4; (2) reacting dimethylamine with an organic metal lithium reagent to synthesize lithium dimethylamino (LiN (CH3) 2); and (3) reacting the intermediate obtained in the step (1) with lithium dimethylamino obtained in the step (2) to obtain tetra (dimethylamino) titanium. By adopting a step-by-step reaction strategy, the dependence on expensive n-butyllithium is fundamentally reduced, the raw material cost is remarkably reduced, meanwhile, the reaction process is optimized by generating an intermediate, the product yield is greatly improved, the generation of byproducts is effectively reduced, and the product purity is improved.

The invention relates to concentrated dialkylaminoalkyllithium initiator solutions suitable for use as anionic polymerization initiators for olefin-containing monomers and in which the initiator concentration is at least 0.3 mol / L.

The application provides an organic lithium supplementing agent, which has the following structure: wherein R1 is selected from -COOLi, -O-COOLi, -NH-COOLi and -C=C-Li; R2 is selected from H, halogen, C 1～3 alkyl, C 1～3 alkoxy, n is 3 or 4, and m+n=5. The organic lithium supplementing agent provided by the application has high specific capacity and low delithiation voltage, the specific capacity is higher than 450 mAh / g, and the delithiation voltage is lower than 4.7 V, which is obviously superior to conventional organic lithium supplementing agents. When the organic lithium supplementing agent is applied to a battery, the energy density of the lithium battery can be increased by 5 mAh / g at most.

The present invention relates to a process for the preparation of a pyridine derivative of formula (I).

The present invention relates to the use of alkali metal phenolic compounds of formula (I) or (II) as catalysts in the ring-opening polymerization of heterocycles such as cyclic esters, ethers and carbonates for the industrial production of biodegradable polymers. The present invention also relates to polymerization processes using these compounds.

A polycyclic compound represented by Formula 1: and a light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region are provided. The electron transport region includes a polycyclic compound represented by Formula 1.

The present invention provides a (6Z)-6-tridecenyl metal compound (1) wherein M1 represents Li or MgZ1, and Z1 represents a halogen atom or a (6Z)-6-tridecenyl group; also provided is a method for preparing a compound (1) comprising the steps of: preparing a (3Z)-3-decenyl metal compound (3) from a 1-halo-(3Z)-3-decenyl compound (2), where X1 represents a halogen atom, where M2 represents Li or MgZ2, and Z2 represents a halogen atom or a (3Z)-3-decenyl group; a coupling reaction of the compound (3) with a 1, 3-dihalopropane compound (4), where X2 and X3 independently of each other represent a halogen atom, to form a 1-halo-(6Z)-6-tridecene compound (5), where X4 represents a halogen atom; and preparing a (6Z)-6-tridecenyl metal compound (1) from the compound (5).

The present application relates to an intermediate of fulvestrant and a preparation method thereof. Specifically, the present application relates to a compound as shown in formula V and a preparation method thereof, wherein R 1 is hydrogen or a hydroxyl protecting group. The present application also relates to a preparation method for synthesizing fulvestrant via the compound as shown in formula V, which has the advantages of short reaction steps, mild and safe reaction conditions, high selectivity, simple operation and purification, high synthesis efficiency, and is suitable for large-scale production.

A polycyclic compound represented by Formula 1: and a light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region are provided. The electron transport region includes a polycyclic compound represented by Formula 1.

This invention provides a novel method for manufacturing fluorinated carboxylate compounds, for producing formula (P1): (B 1f ) mp (A) 1 ) np [B] 1f RfCOO; Rf is a hydrocarbon group having one or more fluorine atoms; A 1 It is a group other than H; mp is (A 1 The valence of () × np and is 1 or 2; np is mp / (A 1 The valence of A is 1; 1 The method of manufacturing a compound having a valence of 1 or 2 includes: making formula (S1): (B 1f (R) 1 ) [R 1 The compound shown is an organic group and is related to formula (S2): (A 1 ) ms2 (B) 2 ) ns2 [B] 2 It is OH, CO3 or HCO3; ms2 is (B 2 (valence) × ns2 / (A) 1 The valence of ns is 1 or 2; ns2 is (A 1 (value) × ms² / (B) 2 The reaction of the compound or its hydrate shown in the figure (with a valence of 1 or 2) is a step A.

The invention relates to the technical field of tert-butyllithium preparation, in particular to a tert-butyllithium preparation method which comprises the following steps: preparing raw materials, dissolving lithium and washing oil, mixing the raw materials to start reaction, dropwise adding a modifier, carrying out heat preservation treatment, cooling, settling and taking clear liquid. According to the method, trace impurities on the surface of lithium are removed in the pretreatment link, the PVP coating can block contact of water, oxygen and lithium in a long-acting mode, lithium is prevented from going bad in the earlier stage of storage and reaction, and meanwhile the compatibility of lithium and organic solvents such as n-pentane is enhanced; the interference of impurities on the reaction can be eliminated in a high-purity state of the chlorinated tert-butane, byproducts such as lithium tert-butoxide are prevented from being generated, the moisture in the system is strictly limited by deep dehydration, a stable anhydrous environment is provided for synthesis of the tert-butyllithium, and the reaction efficiency is guaranteed; the operation of deep dehydration and impurity removal by activated aluminum oxide creates a high-cleanliness solvent system for the reaction, avoids the action of water and polar impurities with tert-butyllithium or reaction intermediates, and prevents product decomposition or impurity generation.

The present invention provides a mechanochemical reaction method and reaction apparatus that allows for operations such as adding reagents during the reaction, removing reaction products, and adding substrates for the next reaction without removing the lid of the reaction vessel, while preventing a decrease in reaction efficiency and ensuring safety. Furthermore, it allows for checking the state inside the reaction vessel, and improves operability and workability, while shortening (accelerating) the reaction process. [Solution] A mechanochemical reaction method using a reaction apparatus comprising a reaction vessel A having an opening and a lid 12 that can open and close to seal the opening 13 of the reaction vessel, wherein one or more through holes 21 are provided in the reaction vessel other than the opening and / or in the lid, allowing communication between the inside of the reaction vessel and the outside of the reaction vessel.

The present invention provides a mechanochemical reaction method and reaction apparatus that allows for operations such as adding reagents during the reaction, removing reaction products, and adding substrates for the next reaction without removing the lid of the reaction vessel, while preventing a decrease in reaction efficiency and ensuring safety. Furthermore, it allows for checking the state inside the reaction vessel, and improves operability and workability, while shortening (accelerating) the reaction process. [Solution] A mechanochemical reaction method using a reaction apparatus A comprising a reaction vessel 11 having an opening and a lid 12 that seals the opening 13 of the reaction vessel in an openable and closable manner, wherein one or more through holes 21 are provided in the reaction vessel other than the opening and / or in the lid, communicating the inside of the reaction vessel with the outside of the reaction vessel.

The invention relates to the technical field of argon graded replacement, in particular to an argon graded replacement method for synthesizing n-butyllithium. Comprising the following steps: arranging a gas accommodating cavity between adjacent reaction kettles, and controllably communicating the gas accommodating cavity with a gas outlet of a front-stage reaction kettle and a gas inlet pipeline of a rear-stage reaction kettle through a control valve group; firstly, pretreatment equipment (a branch pipe) of a single kettle is started, argon is introduced, mixed gas in a pipeline blind area is removed, then the argon time sequence and flow of upstream, downstream and midstream gas inlets are controlled, a stable pressure gradient is formed, and the mixed gas in the kettle is directionally pushed to a gas containing cavity; mixed gas in the front-stage gas accommodating cavity is introduced into the rear-stage kettle for repeated replacement and is finally discharged from the tail end; according to the method, blind area purification is enhanced, the replacement efficiency is improved, argon consumption is reduced, inert gas waste is reduced, carbon emission reduction is assisted, and atmospheric pollution prevention and control are assisted.

The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge / discharge efficiency, -10°C resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.

Provided are an organometallic compound, a light-emitting device including the same, and an electronic device including the light-emitting device. The organometallic compound is represented by Formula 1 wherein in Formula 1, M1 is a transition metal, L1 is a ligand represented by Formula 2A, L2 is a ligand represented by Formula 2B, n1 is 1 or 2, and n2 is 1 or 2 wherein in Formula 2B, ring CY4 is a group represented by Formula 2C, and other groups and variables are as described herein.

The present invention relates to the technical field of additives to an electrolytic solution of salt batteries; in particular, the present invention relates to a method for preparing a high-purity bisfluorosulfonylimide salt. The preparation raw materials include at least bisfluorosulfonylimide, and M+nXn-; wherein M is selected from any one of Li, Na, K, Rb and Cs, X is an anion including at least one element of B, O, N, P and Si, and n≥2. In the method for preparing a bisfluorosulfonylimide salt provided by the present disclosure, a conversion rate for a target product is high, there is only a single reaction product with almost no side reactions, and the purity of the product is high; during the implementation, there is substantially no generation of the "three wastes", and the byproducts and solvent can be recycled.

A polycyclic compound represented by Formula 1: and a light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region are provided. The electron transport region includes a polycyclic compound represented by Formula 1.

A method for producing a compound of formula (1) R11X11—SO3M11, which includes reacting a compound of formula (3) R31O—SO2—OR32 and a metal alkoxide, wherein R11, X11 and M11 are as defined herein.

The present invention relates to an efficient scalable synthesis of compounds such as ((1S,2S)-2-(5-methylpyridin-2-yl)cyclo-propyl)methanol, which contains a disubstituted cyclopropane with two stereogenic centers and represents a significant challenging synthetic target.

The invention relates to a process for separating metals of interest from polymetallic samples. Especially, it relates to the separation of lithium and / or manganese from a polymetallic sample originating from end-of-life batteries. The process comprises a lithium leaching step in absence of mineral acid, a step of recovering lithium in a solid form, a step of forming manganese formate, and a step of recovering manganese in a solid form.

[Problem] To provide a melting salt with a low glass transition temperature. [Solution] A melting salt according to the embodiments comprises an alkali metal salt and 5-50 mol¾ of an organic polymer. The alkali metal salt has an anion with an amide structure or a methide structure, or an anion selected from BF₄, PF₆, CIO₄, CF₃SO₃, C₂F₅SO₃, C₄F₉SO₃, and CF₃CO₂. The organic polymer is one or more types with a polar functional N, O, or F group coordinated with a cation of the alkali metal salt. The glass transition temperature is lower than the glass transition temperature of the alkali metal salt alone.

The present invention relates to at least one -S(O) 2 A lithium salt B containing a -F group is reacted with a compound represented by the formula (I) RO-SiR 1 R 2 R 3 to form at least one group -S(O) 2 The present invention relates to a method for preparing a lithium salt A comprising step a) forming a product mixture comprising a lithium salt A containing -OR, wherein the catalyst D is a compound having a pKa greater than 11 measured at 25° C. The present invention also relates to a lithium salt of formula (IIIa), (IIIb), (IIIc), (IIId), (IIIe), (IIIf), (IIIg), (IIIh), (IIIi), (IIIj), (IVa), (IVb), (IVc) or (IVd).

This invention belongs to the field of lithium industry technology, and particularly relates to an alkyl lithium filtration process, comprising the following steps: Step 1: Under the protection of argon gas, lithium metal particles and hydrocarbon solvent are added to a washing vessel, allowing the lithium metal particles to be washed to remove surface impurities; Step 2: Under the protection of argon gas, the washed lithium metal particles are added to a synthesis vessel, followed by the addition of hydrocarbon solvent, and the total solvent volume is adjusted to a specified value; Step 3: Chlorinated alkanes are added to the synthesis vessel using a mixed droplet method, and the chlorinated alkanes react fully with the lithium metal particles and hydrocarbon solvent in the reaction vessel at a specific temperature. When filtering the alkyl lithium solution, as the drive shaft rotates forward, the alkyl lithium solution sprayed through the through-holes on the drive shaft can be evenly sprayed onto the surface of the rotating sintered mesh filter element, thereby improving the filtration effect of the sintered mesh filter element on the alkyl lithium solution.

The invention generally relates to organic cages and in particular to alkali and alkline earth metal organic cages. The invention also relates to a method of making an organic cage, a method of lithium separation and use of an organic cage for lithium separation. The organic cage comprises at least one first ligand having at least one electron donating binding moiety, at least one second ligand having at least one electron donating binding moiety, and at least one metal ion selected from an alkali or alkaline earth metal ion, where the at least one first ligand and the at least one second ligand are covalently bonded such that they form a polyhedral cage having at least one binding pocket inside the polyhedral cage. Each of the at least one binding pockets has one electron donating binding moiety of at least one first ligand and one electron donating binding moiety of at least one second ligand, and each of the at least one metal ions is multiply coordinated to the binding moieties in one of the at least one binding pocket.

The present invention provides a mechanochemical reaction method and reaction equipment that allows operations such as adding reagents during a reaction, removing reaction products, and adding a substrate to be used in the next reaction to be performed without removing the lid of the reaction vessel, while preventing a decrease in reaction efficiency and ensuring safety, and that also allows the state inside the reaction vessel to be confirmed, with improved operability and workability, and with shorter (higher speed) reaction steps. [Solution] This is a mechanochemical reaction method using a reaction device comprising a reaction vessel A having an opening and a lid 12 that seals the opening 13 of the reaction vessel in an openable and closable manner, wherein one or more through holes 21 that connect the inside of the reaction vessel to the outside of the reaction vessel are provided in the reaction vessel other than the opening and / or in the lid.

The application provides an organic lithium supplementing agent, which has the following structure: wherein R1 is selected from -COOLi, -O-COOLi, -NH-COOLi, -C=C-Li, p is 2 or 3, R2 is selected from H, halogen, C 1～3 alkyl, C 1～3 alkoxy, n is 3 or 4, and m+n+p=6. The organic lithium supplementing agent provided by the application has high specific capacity and low delithiation voltage, the specific capacity is higher than 450 mAh / g, and the delithiation voltage is lower than 4.7 V, which is obviously superior to conventional organic lithium supplementing agents. When the organic lithium supplementing agent is applied to a battery, the energy density of the lithium battery can be increased by 4 mAh / g.

According to a nonaqueous electrolytic solution containing: (I) at least one selected from the group consisting of a compound represented by General Formula (1) described in the specification (for example, a compound represented by the following Formula (1a)) and a compound represented by General Formula (2) (for example, a compound represented by the following Formula (2a)); (II) a solute; and (III) a nonaqueous organic solvent, a nonaqueous electrolytic solution and a nonaqueous electrolytic solution battery having a low initial resistance value, and a compound that can be suitably used in the above nonaqueous electrolytic solution can be provided;