Organic Compound Preparation TRIZ Cases

Replacing expensive DBU with carbonates or hydroxides during haloacetamide and phenol reaction reduces synthesis cost while maintaining high yield.

Buffering removes cuprenes to protect catalyst activity and maintain 99.5% purity.

Amino and hydroxyl groups in the polyether compound enable direct curing of epoxy resins, removing the need for additional components.

A triethylene glycol based plasticizer composition enhances polyvinyl chloride resin properties.

Spray nozzles inject deposit preventing liquid to form protective wall films, stopping solid buildup that blocks gas flow and forces shutdowns.

A distillation process removes methyl propionate and methyl isobutyrate from crude methyl methacrylate using extractive separation techniques.

Thermal initiation of polyalkylene glycol with (meth)acrylic anhydride eliminates catalyst residues that typically compromise product purity.

A dividing wall distillation column separates crude n-butanol into distinct boiling fractions using internal compartmentalization.

Copper iodide mediates the disproportionation of aromatic carboxylates to dicarboxylic acids, replacing toxic cadmium catalysts and reducing energy consumption.

Maintaining molar excess of dicarboxylic acid during reaction prevents particle aggregation and improves polymerization activity.

Nitrous oxide oxidation of cyclic olefins followed by catalytic hydrogenation produces saturated macrocyclic ketones like muscone with high yield.

Replacing toxic coupling reagents with simple esters enables selective N-acylation, eliminating costly purification steps.

Using a basic catalyst system to synthesize acrylic acid oligomers reduces inhibitor consumption while maintaining stability for polymerization processes.

Molybdenum tungsten mixed metal oxide catalysts enhance catalytic activity through optimized anion to cation molar ratios.

Heterogeneous nano-structured catalyst converts glycerol with methanol into oxygenated fuels under subcritical and supercritical conditions.

Crystallizing pleuromutilin in i-propylacetate achieves high purity levels for pharmaceutical applications.

Selective fluorine substitution allows high-yield nucleophilic reactions that eliminate chromatographic purification steps.

Two-stage hydrolysis prevents degradation by separating cellulose breakdown from glucose conversion, achieving yields over 55%.

A ruthenium pincer complex catalyzes tandem amination-reduction to synthesize amino acids from functionalized olefins.

Selective absorption using polyalkylbenzene recovers monoalkylbenzene while excluding contaminants like methane and water.

A shield intercepts alkali metal acetate mist before it reaches the thermometer protection tube in a fixed-bed multi-tubular reactor.

Overlapping subprofiles in sequential SMB chromatography recover sucrose and betaine from high sucrose content thick juice.

Immobilizing copper complexes on TiO2-ZnO nanoparticles enables easy recovery while maintaining high catalytic efficiency.

A mesoporous catalyst containing iron and copper enables efficient long chain alcohol synthesis from carbon monoxide and hydrogen.

Replacing mechanical centrifuges with a settling tank reduces capital costs and improves reliability while removing impurities like 4-carboxybenzaldehyde.

Peroxidic compounds oxidize polyol esters to lighten color, while steam treatment removes residual peroxides to ensure stability.

A molybdenum oxide and activated carbon composite catalyst reduces aromatic nitro compounds to aniline using hydrazine hydrate.

Dual functional organocatalysts promote cascade Michael reactions to form functionalized cyclopentenes with high diastereoselectivity.

Retro Diels-Alder elimination merges side-chain attachment and deprotection, reducing synthesis complexity for vitamin K2 production.

Controlling catalyst body dimensions to less than 3% non-uniformity resolves the trade-off between manufacturing precision and reaction selectivity.

Replacing chloride ligands with iodide in platinum catalysts overcomes low aldehyde yields from standard Pt(Xantphos)Cl2 systems.

Triangular tube arrangement with disk-and-doughnut baffles prevents hot spots and cold spots during exothermic reactions.

Adding water during hydrogenation converts difficult-to-separate acetal by-products into hydroxy acids, improving purity without complex distillation.

Helmet phthalocyaninato catalyst oxidizes sulfur compounds with ambient air at room temperature, eliminating toxic metals and organic solvents.

Acetal protection prevents molecular condensation during lithiation and amination, enabling high-yield production of unstable 2-amino-benzaldehydes.

A two-stage hydrogenation process uses nickel metal foam to convert aldehydes into alcohols efficiently.

Solid acid catalyst replaces corrosive hydrochloric acid to produce 4,4′-methylenedianiline with high isomer selectivity and extended lifetime.

Recycling carbon dioxide and inert gases through absorption enhances carbon utilization in mixed alcohol synthesis while enabling olefin production.

Adding base after initiation controls pH to minimize four-carbon diols, reducing distillation losses during bioderived propylene glycol purification.

Supercritical chromatography resolves purity-cost trade-offs in biological fermentation by selectively extracting target diacids from complex impurity mixtures.

Replacing phenol and formaldehyde with aqueous alkylation boosts HBED salt yields for technical production.

Nitrogen inert atmosphere during aminolysis prevents impurity formation, eliminating energy-intensive distillation steps.

Segmenting the reactor into smaller tubes increases the surface area to volume ratio, preventing hotspots and extending catalyst service life.

Merging condensation and hydrogenation into a one-pot aqueous route reduces organic solvent waste while maintaining high yield and purity.

Replacing low-yield resolution with a chiral auxiliary route that boosts overall yield and reduces production costs for commercial manufacturing.

Normal pressure reaction at 103° C to 115° C eliminates high-pressure equipment complexity while achieving tenfold space-time yield improvements.

Cyanating cyanocyclohexane-1-carboxylic acid yields dicyanocyclohexane while avoiding alcohol by-products that reduce production efficiency.