Organic Compound Preparation TRIZ Cases

A cobalt-aluminum-nickel hollow sphere catalyst suppresses amino alcohol by-products and extends service life during isophoronenitrile aminating hydrogenation.

Vacuum fractional distillation purifies tricyclodecane dimethanol to reduce ether impurities below one percent by weight.

Controlling nitrate ion concentration in silica sol improves propane oxidation yield and attrition resistance.

Homogenous precipitation of molybdenum trioxide and thioacetamide yields stable metal sulfide catalysts.

Molten diphenol passes through a droplet generator and cools into spherical prills, eliminating dust formation and residual water content.

Chromium-promoted Raney nickel achieves high acetone conversion and reaction rates, preventing product contamination in isopropylamine synthesis.

Replacing PtCl2 with PtI2 or PtBr2 boosts aldehyde yield while maintaining process simplicity.

A glycerol-based process produces dimethyl carbonate through sequential chemical reactions.

Replacing alkyl halides with bio-based keto acids eliminates salt accumulation and safety hazards while maintaining low foaming performance.

Segmenting the reaction zone with a solid acid catalyst prevents thermal degradation while optimizing the molar ratio to reduce equipment size.

Evaporating oxidation effluent to concentrate cyclohexylbenzene hydroperoxide, reducing operating costs and preventing yield loss from aldol condensation.

Segmented reaction zones and oxidant injection maintain high acetone cyanohydrin conversion while extending catalyst life.

Acid-free quaternized nitrogen additives prevent internal diesel injector deposits through betaine molecular structures.

A melt polymerization method removes methanol impurities from acetone monomer mixtures using transesterification with diaryl carbonate.

Continuous processing shifts equilibrium by removing products, overcoming batch limitations and boosting yield.

Tertiary amine-modified hydrophobes resist pH-triggered viscosity drop during heat aging, preserving rheology in paint formulations.

Two-stage extraction removes formals and salts from diol mother liquid, preventing equipment fouling and crystallization interference.

Direct alkylation of halogenated steroids with organometallic agents and palladium catalysts simplifies synthesis by removing dehydrogenation steps.

A gas-introducing mixer extracts air and disperses hydrogen into reaction liquid to improve contact efficiency.

Tungsten and ruthenium catalyst system increases ethylene glycol yield from carbohydrates while minimizing butylene glycol by-product formation.

Biobased polyester polyols eliminate toxic phthalate plasticizers while maintaining mechanical strength and hydrolytic stability in elastomer applications.

Mathematical model predicts by-product formation from raw material properties and adjusts process parameters to maintain methanol output while reducing waste.

Direct aqueous precipitation eliminates extraction solvents while portioned dimethyl sulfate addition prevents decomposition during etherification.

Copper catalyst oxidizes fatty alcohols to aldehydes using controlled oxygen and water-absorbing materials, resolving yield and purification trade-offs.

Organic ligands coordinate with zirconium to dissolve the catalyst in nonpolar solvents, eliminating reactor residuals and reducing purification steps.

Protonic acids prevent dicarbonate diester decomposition, enabling safe food preservation and high-purity distillation.

A 1,4-addition reaction between a metal reagent and an ester forms the target acid precursor.

A microtube-based ionic liquid colloid interface uses poly(ionic liquid) and potassium ionophores to enable selective ion detection.

Lithium-melt synthesis creates uniform metal clusters on porous carbon supports to enable selective carbon dioxide reduction at low overpotentials.

Sulfuric acid and phenol form a catalyst mixture that decomposes cumene hydroperoxide, reducing hydroxyacetone byproducts and improving phenol quality.

A two-stage process hydrogenates C9 aldehydes using nickel metal foam and supported catalysts.

Separates medium boiling components without remixing, eliminating thermal inefficiency and reducing energy consumption in high-purity production.

Adjusting pH and cooling rates yields stable calcium glycerate crystals, resolving low production efficiency and purity issues.

A method reacting compound I-3 with aldehyde A1 using an inorganic base to produce oxyresveratrol.

Fermenting sugars into butyric acid then converting it to heptan-4-one creates a high-energy hydrocarbon fuel additive.

Phosphine-nickel complexes with cycloalkadiene ligands accelerate cyanation rates and increase yields while preventing catalyst deactivation during synthesis.

Removing methyl formate via distillation prevents formic acid generation, achieving acetic acid purity below 500 ppm without complex extractive separation.

Reducing the water to diol ratio below one prevents pasty textures and eases catalyst recovery during oxidative scission.

Oxidizing 4-CBA with an ionic liquid solvent eliminates catalytic hydrogenation, reducing impurity levels.

Acid-assisted hydrolysis degrades dimethyl acetal impurities to eliminate yellow discoloration without significant product loss.

Epoxy accelerators enable mild amide alcoholysis, resolving substrate sensitivity and cost issues.

Replacing fermentation with chemical steps yields pure Z-dairy-lactone isomers, avoiding racemic mixtures and complex biological separation.

Heterogeneous catalyst hydrogenation of furfuryl alcohol yields pure 1,2-pentanediol without unpleasant-smelling by-products.

An ether-based reactive plasticizer binds to polymer binders via click reactions during curing.

Asymmetric catalytic hydrogenation using chiral spiro pyridyl phosphine ligand complexes with Iridium catalysts resolves racemic hydroxy esters.

A chiral phosphine-rhodium metal complex catalyzes asymmetric hydrogenation of tetra-substituted enamides to synthesize high-purity chiral amides.

Aryloxide deprotonates stable nickelalactone intermediates to overcome kinetic barriers in alkene carboxylation.

Varying cross-sectional area and gas sparging eliminate mechanical agitation, reducing impurity formation and purification costs.