This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, in the reaction using this complex, there are problems such as the low reactivity to internal olefins, and the use of Na mercury, which is composed of water-restricted sodium and highly toxic mercury, and requires careful handling when synthesizing the complex. Qi (or use water-restricted NaBEt 3 H), the stability of the coordination compound itself is low, and special equipment such as a glove box is required for handling. In addition, it must be stored under a nitrogen atmosphere
[0021] A large number of methods using hydrosilane compounds and methylhydrogenpolysiloxane, which are stable in air and easy to handle, are reported as reducing agents, but the reaction requires the addition of strong acid or Lewis acid, and expensive noble metal catalysts
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0203] [Example 1] Synthesis of Iron Complex A
[0204] [chemical 13]
[0205]
[0206] (In the formula, Me means a methyl group.)
[0207] Under argon atmosphere, put (η 6 -1,3,5,7-Cyclooctatetraene)(η 4 -1,3,5,7-cyclooctatetraene)iron (0) complex (40mg, 0.15mmol) and 2,4,6-trimethylphenylisonitrile (66mg, 0.45mmol), to which Degassed and dehydrated hexane (40 mL) was added, followed by stirring at room temperature for 1 hour. Then, 1,2-bis(dimethylsilyl)benzene (64 mg, 0.33 mmol) was added, and after replacing the inside of the reaction vessel with a hydrogen atmosphere, a high-pressure mercury lamp (manufactured by USHIO Electric Co., Ltd., UM-453B- A (450W)) was stirred at room temperature for 48 hours while being irradiated with light. After the reaction was completed, it was dried under reduced pressure, and the obtained dried product was dissolved in toluene (10 mL), and a small amount of black insoluble matter produced as a by-product was removed by centrifugat...
Embodiment 2
[0213] [Example 2] Synthesis of Iron Complex B
[0214] [chemical 14]
[0215]
[0216] (In the formula, Me means a methyl group.)
[0217] Under argon atmosphere, put (η 6 -1,3,5,7-Cyclooctatetraene)(η 4 -1,3,5,7-cyclooctatetraene)iron (0) complex (100mg, 0.38mmol) and 2,6-dimethylphenylisonitrile (149mg, 1.14mmol) were added via Degassed and dehydrated hexane (60 mL) was stirred at room temperature for 1 hour. Then, 1,2-bis(dimethylsilyl)benzene (162 mg, 0.83 mmol) was added, and after replacing the inside of the reaction vessel with a hydrogen atmosphere, a high-pressure mercury lamp (manufactured by USHIO Electric Co., Ltd., UM-453B- A (450W)) was stirred at room temperature for 48 hours while being irradiated with light. After completion of the reaction, it was dried under reduced pressure, and the obtained dried product was dissolved in toluene (10 mL), and a small amount of black insoluble matter produced as a by-product was removed by centrifugation. Then, the...
Embodiment 3
[0222] [Example 3] Synthesis of Iron Complex C
[0223] [chemical 15]
[0224]
[0225] (In the formula, Me means a methyl group.)
[0226] Under argon atmosphere, put (η 6 -1,3,5,7-Cyclooctatetraene)(η 4 -1,3,5,7-cyclooctatetraene)iron (0) complex (50mg, 0.19mmol) and adamantyl isonitrile (92mg, 0.57mmol), to which was added degassed and dehydrated Alkane (50 mL), stirred at room temperature for 1 hour. Then, 1,2-bis(dimethylsilyl)benzene (80 mg, 0.42 mmol) was added, and after replacing the inside of the reaction vessel with a hydrogen atmosphere, a high-pressure mercury lamp (manufactured by USHIO Electric Co., Ltd., UM-453B- A (450W)) was stirred at room temperature for 48 hours while being irradiated with light. After completion of the reaction, it was dried under reduced pressure, and the obtained dried product was dissolved in toluene (5 mL), and a small amount of black insoluble matter produced as a by-product was removed by centrifugation. Then, the toluene s...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
A mononuclear iron bivalent complex having iron-silicon bonds, which is represented by formula (1), can exhibit an excellent catalytic activity in at least one reaction selected from three reactions, i.e., a hydrosilylation reaction, a hydrogenation reaction and a reaction for reducing a carbonyl compound. (In the formula, R1 to R6 independently represent a hydrogen atom, an alkyl group which may be substituted by X, or the like; X represents a halogen atom, or the like; L1 represents at least one two-electron ligand selected from an isonitrile ligand, an amine ligand, an imine ligand, a nitrogenated heterocyclic ring, a phosphine ligand, a phosphite ligand and a sulfide ligand, wherein, when multiple L1's are present, two L1's may be bonded to each other; L2 represents a two-electron ligand that is different from a CO ligand or the above-mentioned L1, wherein, when multiple L2's are present, two L2's may be bonded to each other; and m1 represents an integer of 1 to 4 and m2 represents an integer of 0 to 3, wherein the sum total of m1 and m2 (i.e., m1 + m2) satisfies 3 or 4.)
Description
technical field [0001] The present invention relates to a mononuclear iron complex having an iron-silicon bond, and more specifically, to a mononuclear iron complex having catalytic activity in at least one of industrially useful hydrosilylation reactions, hydrogenation reactions, and reduction reactions of carbonyl compounds mononuclear iron complex. Background technique [0002] A hydrosilylation reaction in which an Si-H functional compound is added to a compound having a carbon-carbon double bond or a carbon-carbon triple bond is a useful means for synthesizing organosilicon compounds and is an industrially important synthesis reaction. [0003] Pt, Pd, and Rh compounds are known as catalysts for this hydrosilylation reaction, and among them, Pt compounds typified by Speier catalyst and Karstedt catalyst are the most used catalysts. [0004] As a problem in the reaction using a Pt compound as a catalyst, a side reaction in which an olefin internal rearrangement occurs w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More