Organic Compound Preparation TRIZ Cases

Separating cooling from the sugar fragmentation reactor cuts layout complexity and cost while maintaining high C1-C3 oxygenate yield.

An oxygen-free shielding gas in the IPA tank prevents oxidation residues and particle contamination during semiconductor wafer drying.

Asynchronous parallel phosgenation batches smooth exhaust gas peaks, enabling compact absorption equipment and consistent phosgene recovery.

Raising pH during the later stage of biocatalytic nitrile hydration suppresses foaming and improves handling of amide aqueous solutions.

Multiple spray nozzles and optimized spray angles spread feed evenly in dual flow tray columns, preventing channeling and cutting energy use.

Calixarene phosphorus ligands around transition metals improve hydrocyanation and olefin isomerization selectivity, yield, and catalyst stability.

A phosphonium salt and Wittig route cuts hazardous reagents, solvent load, and steps in industrial dodecadiene intermediate synthesis.

Waste plastic pyrolysis oil is fractionated and purified for styrene monomer co-production without sacrificing product quality or existing process performance.

Multiple distillation and 1-hexene extraction steps recover acrylonitrile dimerization catalyst with lower process load and fewer side reactions.

Cooling-tower separation and dimer-to-lactic-acid conversion cut distillation energy while improving lactic acid recovery in acrylic acid production.

Non-thermal DBD plasma with Ni/Co/Cu catalysts activates CO2 and H2 near room temperature to improve oxygenate selectivity and limit CO formation.

Au-Cu alloy sites on a ZnO support raise CO2-to-methanol selectivity above 80% under moderate temperature and pressure, cutting energy cost.

A two-zone microchannel flow route cuts amidation cost and nitration risk while improving selectivity, purity, and continuous production.

Branched aromatic-polyether side chains cut concrete viscosity while preserving strong water reduction across varied cement compositions.

Arsenic-containing ligands paired with nickel improve hydrocyanation and isomerization selectivity, reaction speed, and catalyst stability.

Removing or deactivating residual hydrogenation catalyst before distillation cuts by-products and improves 1,3-butylene glycol purity and odor.

A Pd-Ru catalyst with controlled Ru4+/Ru0 and a core-shell structure boosts 4-CBA conversion while suppressing palladium grain growth.

A split methacrolein feed enables concurrent methacrylic acid and methyl methacrylate production with controllable ratios and fewer byproducts.

Chelating bidentate phosphite ligands stabilize nickel catalysts for faster, more selective hydrocyanation and fewer by-products.

Calixarene-based phosphorus ligands improve hydrocyanation and olefin isomerization by balancing catalyst speed, selectivity, and stability.

Dual isomerization and metathesis catalysts convert waste rubber into C5-C7 cycloalkenes under mild conditions with high selectivity and yield.

A dioxolane-based bidentate phosphite ligand forms nickel catalyst complexes that raise adiponitrile yield and selectivity while suppressing side products.

Supercritical direct substitution replaces carboxyl groups with nitrile groups to produce high-purity aliphatic nitriles without catalysts or washing.

Catalyst-free thermal cracking breaks down Michael adducts, cuts residue and dibutyl ether, and helps deliver high-purity butyl acrylate.

A cobalt dimethylglyoxime catalyst shifts C-C double bonds at 1-10 bar H2, avoiding metal chlorides, corrosion, and complex reactors.

A high-boiling base shifts cyclic diene synthesis toward the beta isomer, avoiding hard-to-separate alpha and gamma regioisomers.

Optimized stirring power and blade tip speed improve gas-liquid contact, raise organic compound yield, and limit reverse reactions.

Using sub-stoichiometric H2 and water-selective separation, this DME process cuts methanol by-product formation and simplifies recycle.

Tetrapeptide catalysis raises aldol enantioselectivity to 99% ee, enabling mild, high-yield synthesis of chiral 2-hydroxy-1,4-dicarbonyls and pantolactone.

An IDPi-catalyzed Diels-Alder sequence replaces low-yield multistep synthesis to produce enantiopure (-)-(Z)-β-santalol more efficiently.

A CuO-SiO2 catalyst with a fiber binder improves strength and resists elution under high temperature and pressure, helping sustain neopentyl glycol yield.

A 1,2-naphthoquinone reagent enables rapid field screening of fentanyl analogues with distinct color change and fewer false results.

Acid contaminants are converted into separable esters, enabling cleaner MEG refining with less product loss and less need for purge-heavy neutralization.

Catalytic Lewis acid and base-assisted Vilsmeier-Haack synthesis raises intermediate yield while avoiding AlCl3 hazards and reactor contamination.

A thermally coupled eight-column distillation layout reuses condenser heat across reboilers to cut butanol and octanol separation energy use.

A staged acylation, nitration, and hydrolysis route improves selectivity and safety for industrial ω-nitrooxy alkanol production.

A segmented HEDC synthesis route improves yield and purity while reducing side products and avoiding complex chromatographic work-up.

Phenylallylidene compounds improve KEAP1 binding, stability, solubility, and blood-brain barrier penetration to activate Nrf2 in brain tumors.

Zirconium-modified Cu-Al catalyst composition improves acid and water stability, cuts metal leaching, and preserves carbonyl hydrogenation activity.

Hydrofluorination routes and catalysts raise methyl 2-fluoroacrylate yield and purity while avoiding toxic starting materials and hard purification.

Adding liquid to the first reactor discharge raises flow velocity, prevents unreacted buildup, and keeps diester lines and pumps operable.

Fixed-bed resin catalysis and phase separation raise GTBE yield and purity while avoiding catalyst loss, ether degradation, and wash-water contamination.

Bottoms temperature capped at 140°C lets distillation remove water and organic impurities while avoiding polycondensation and product loss.

A continuous azeotrope and phase-separation scheme recovers acidic catalyst, removes water, and cuts energy use in n-butyl (meth)acrylate production.

Mixed-metal oxide catalysts improve Guerbet alcohol conversion to isobutanol with better selectivity, productivity, and lower production cost.

Transition metal cross-coupling, reduction, and chiral acid crystallization raise Compound 1 yield and enantiomeric purity for ER+ cancer studies.

Ion exchange and distillation cut secondary hydroxyl impurities and 6-hydroxyhexanal, preserving biomass benefits while improving polymer reactivity.

A cosolvent-assisted depolymerization route breaks urethane polymers at lower temperature to recover high-purity polyol with high yield.

Protected ODDA esterification and catalytic deprotection raise ODDA-paclitaxel yield and purity while suppressing PTX-linked by-products.

Water fed to the lower distillation tower breaks down lactic acid oligomers, lowers temperature, and helps raise acrylic acid yield.

N2P2O2 ruthenium complexes enable base-free aldehyde reduction, resolving substrate sensitivity and selectivity trade-offs.

Hydrolyze bisphenol-A residue streams with aqueous base to recover acetone and phenol.

A composite metal oxide catalyst containing phosphorus or sulfur and tungsten catalyzes glycerin dehydration to produce acrolein.

A distillation column recovers mono-ethylene glycol from bio-derived diol mixtures.

Direct offgas expansion converts harmful condensables into energy, eliminating corrosion risks and reducing process complexity.

Imprinted silica catalysts mimic enzyme active sites to hydrolyze cellulose, replacing expensive biological enzymes with stable synthetic alternatives.

Converts cyclic alkyleneureas into alkyleneamines via a two-step water and base reaction sequence.

Basic solution washing removes adhered solid matter from catalyst production apparatus, maintaining activity and selectivity.

Proportional feed distribution across parallel reactors maintains constant reaction rates while reducing CO2 production during catalyst deactivation.

Metal salt additives in the resist composition trap generated acid via ion exchange, resolving the tradeoff between sensitivity and line width roughness.

Pyrolysis of a novel intermediate eliminates hazardous reagents and side products, achieving over 80% yield in Polysantol production.

Composite catalyst with zirconium dioxide and nickel suppresses decarbonylation to prevent runaway reactions.

One-pot consecutive reactions merge ketalization and Claisen rearrangement to eliminate intermediate purification steps, boosting yield and purity.

Nanocrystalline Pt-CeO2 catalyst achieves high phenol conversion and selectivity while reducing process energy consumption.

A piperlongumine-based compound inhibits viral penetration into host cells to prevent infection.

One-pot Grignard and ozonization sequence simplifies synthesis, lowering cost while maintaining purity.

A polymer coating composition derived from di(amido(alkyl)phenol) compounds provides enhanced flexibility and adhesion on substrate surfaces.

Volatile inhibitors reach vapor-space areas to inhibit polymerization, preventing foulant accumulation that causes mechanical damage and fires.

Hollow-shaft gas-introducing mixer disperses hydrogen in reaction solution using ruthenium-on-alumina catalyst to achieve 99% yield.

Split prepurified methanol streams enable parallel production of purified methanol and dimethyl ether with flexible output ratios.

A multi-stage vaporization and reaction process converts glycerol into propylene glycol using hydrogen.

Composite ruthenium rhenium tin catalysts accelerate carboxylic acid hydrogenation to alcohols, overcoming slow rates of standard metals.

Ionic liquids convert aromatic aldehyde impurities to carboxylic acids, eliminating palladium catalysts and purification steps.

A heat exchange system recycles thermal energy from process streams to warm cooled recycle gas.

Halide promoters lower activation energy for carbonylation, reducing pressure and catalyst loading while avoiding corrosive additives.

Segmented reaction with cyanoacetate eliminates residual fumaric ester, preventing premature gelation in polyurea coatings.

A distillation column maintains methanol concentration in the bottom liquid to optimize separation efficiency.

A carbon-based noble metal-transition metal catalyst enables high selective conversion of carboxylic acid functional groups into alcohol functional groups.

Formic acid catalysis resolves yield-purity trade-offs in α-allylated cycloalkanone synthesis by enabling selective acetal exchange and Claisen rearrangement.

A controlled filtration device removes particles from organic processing fluids while preventing low molecular organic matter elution.

A composite phosphor blend converts blue LED radiation into white light with precise spectral control.

Controlled acrolein loading maintains peak catalyst temperatures below 400°C, preventing deterioration while achieving high yield.

Controlling methanol mass composition in extractive distillation reduces permanganate reducing compounds and improves acetic acid purity.

Organoboranes catalyze formic acid disproportionation to produce methoxyborane intermediates for subsequent hydrolysis into methanol.

A chloromethoxycarboxylic acid ester intermediate enables sevoflurane synthesis through halogen exchange and decarboxylation.

Treat hydrocarbon solutions with aqueous base and molecular sieves to remove water and acid, optimizing aluminum consumption in polymerization.

Replacing palladium with platinum ferrocene-diphosphine complexes reduces cost while maintaining high conversion yields in hydroxycarbonylation.

Minimal solvent esterification of tartaric acid reduces reaction time and solvent use for robust solid ink applications.

A hydroxy-substituted carboxylic acid additive provides rust and corrosion inhibition while maintaining lubricity in transmission fluids.

Segmenting reaction products into gas and liquid phases reduces energy consumption while preventing propylene monomer loss.

Vapor-phase hydrogenation using supported nickel or ruthenium catalysts converts tetraalkylcyclobutane diones to diols.

Tin zeolite catalyst improves melonal selectivity and reaction time by optimizing geranial concentration.

A reactor cooler controls methyl acetate concentration to resolve heat surplus and productivity trade-offs in acetic acid production.

Metathesis converts palmitoleic and oleic acid esters into civetone, reducing environmental harm from petrochemical synthesis.

Multicomponent one-pot synthesis uses a Pd-ligand catalyst to produce the atorvastatin calcium intermediate with high selectivity.