Organic Compound Preparation TRIZ Cases

Hydrogenating 1-halo-4-propylhept-3-ene minimizes dehalogenation side reactions, improving yield and purity of delmopinol intermediates.

Modifying chemical structures with specific substituents extends therapeutic duration, enabling once-daily dosing for COPD treatment.

Polyamine extractants remove free carboxylic acids below 1%wt from fermentation streams, enabling bacterial survival and process stability.

Oxidizing agent addition prevents precipitate formation in recycled sulfuric acid streams.

Merging reaction steps synthesizes 2-amino-5-chloro-N,3-dimethylbenzamide while eliminating hazardous materials and reducing production costs.

Converting carbohydrate-derived furfural via platinum catalysis to yield 1,6-hexanediol and reduce petroleum dependence.

A dividing wall distillation column separates crude acrylic acid into high-purity product and byproducts using a single integrated structure.

A synthesis process for 9,9-bis(hydroxymethyl)fluorene reduces dimethyl sulfoxide usage through solid fluorene addition and aqueous extraction.

Hydrophilic and hydrophobic membrane modules replace energy-intensive distillation to purify methyl methacrylate.

A triarylmethane compound with a heteropolyoxometalate anion maintains stable brightness in liquid crystal displays.

Controlling reactant water content below 0.05% during synthesis extends gel time without compromising coating hardness or chemical resistance.

Directly hydrogenating carbonyl and dialkoxy compounds using a catalyst and acidic substance, bypassing complex silane treatments to boost yields.

Captodative alkene reactions with coumalates eliminate isophthalate impurities and remove dehydrogenation catalyst requirements.

Continuous three-reactor process converts synthesis gas to polyoxymethylene dimethyl ethers, eliminating intermediate storage and reducing energy consumption.

A heterogeneous gold catalyst on alumina support enables oxidative esterification of methacrolein and methanol to produce methyl methacrylate.

Gas phase phosgenation recycles excess reagent between two amine reactions to produce distinct isocyanates.

Controlling the molar ratio suppresses side reactions and degradation, enhancing yield and purity.

Hydrogenating a bis-aromatic diol with a nickel-titanium oxide catalyst achieves high conversion and selectivity at low temperatures.

Replacing toxic benzene and dioxane with ethanol and water enables industrial scale production of pharmaceutical grade aminaphtone.

Replacing halogen leaving groups with nitro moieties in Suzuki coupling eliminates toxic waste while expanding substrate scope for aromatic synthesis.

A dividing wall column separates morpholine and monoaminodiglycol from water and ammonia in a continuous distillation process.

A reactively-driven oxygen transport membrane system produces synthesis gas via thermal integration between primary and secondary reforming reactors.

Wittig reaction converts ω-halo-2-alkynal intermediates into conjugated Z-alken-yn-yl acetates.

A quench tower liquid layer prevents dicarboxylic acid blockages by ensuring gaseous substances pass through a fluid barrier before reaching the apparatus head.

Continuous crystallization with Form 1 seeds prevents unstable Form 2 formation, eliminating solvent recovery costs.

Converts synthesis gas to ethanol through methanol and ether intermediates, recycling unreacted gases to minimize substance loss.

Optimized stoichiometric ratios and lower reaction temperatures reduce impurity levels while maintaining yield in diamide synthesis.

Stepwise air addition regenerates hydrogenation catalysts without excessive temperature rises that damage the catalyst or increase energy consumption.

Copper-phosphine catalysis of borate enol esters overcomes organocatalyst substrate restrictions, enabling high enantioselectivity across diverse electrophiles.

Amino-succinato derivatives increase platinum drug water solubility beyond 10 mg/ml while reducing systemic toxicity compared to cisplatin.

A one-pot process merges aniline addition with organic nitrite and copper catalysts to produce substituted phenylpropanones efficiently.

Gravity-driven phase separation in the calming zone increases aqueous volume, enabling efficient organic dispersion without stable emulsion formation.

Precipitating IDN 5404 from DMSO into water creates an amorphous form that eliminates toxic solvent residues while increasing solubility.

A bifunctional norbornane compound produced through rhodium-catalyzed hydroformylation and Diels-Alder synthesis.

Gradual catalyst dosing stabilizes reaction temperature to reduce by-product formation and improve purity of non-ionic X-ray contrast agent intermediates.

Using a tungsten-based catalyst with sucrose-rich feed increases glycerol selectivity, resolving isolation difficulties in alkylene glycol production.

Heteroazeotropic distillation removes water to shift equilibrium, enabling high-purity 2-octyl acrylate production without hydrolysis.

Segmenting crude oil cuts into narrow boiling ranges removes inactive saturates, boosting calcium tolerance and wetting without costly alkylation.

Converting biomass-derived furfural into C4 and C5 mono-alcohols reduces production costs while eliminating vehicle corrosion issues found in ethanol blends.

Controlled water addition dissolves salts into a distinct aqueous phase, preventing distillation fouling and clogging in downstream equipment.

Dynamic adjustment of sulfuric acid to nitric acid mass ratios enables partial load operation, reducing by-product formation and avoiding costly shutdowns.

Isolate pure mannitol modification III via controlled cooling and evaporation, overcoming impurity bottlenecks in commercial production.

Replacing solid phosphoric anhydride with liquid sulfuric reagents eliminates amalgamation, boosting yield and purity while simplifying waste separation.

Replacing hydrocarbon solvents with recyclable acetic acid eliminates hazardous waste and intermediate isolation steps in phenolic antioxidant production.

Heteroaryl-substituted phosphine ligands enable palladium-catalyzed conversion of ethers into esters.

N,N'-carbonyldiimidazole activates carboxylic acids for amide bond formation, resolving low yield issues in scalable synthesis.

Organic tertiary or quaternary ammonium salts replace hazardous strong acids to produce gamma, delta-unsaturated ketones with high yield and selectivity.

Liquid-liquid extraction separates impurities from organic phases, reducing energy consumption while achieving high-purity ethyl acetate.