Organic Compound Preparation TRIZ Cases

Aliphatic aldehydes mediate dioxygen transfer to aryl iodides, resolving waste from stoichiometric oxidants.

Noble metal nanoparticles load onto a magnetic nickel nanowire carrier, allowing easy recovery of expensive catalysts from reaction mixtures.

Helical-tube evaporators reduce 2-EHA content in liquid phase through partial evaporation, preventing polymer formation and cleavage residues.

Phosphonium salt synthesis creates water-soluble carotenoid derivatives to overcome isomeric mixture complexity and low bioavailability.

A tertiary amine production process regulates the agitating power ratio against the gas flow number to optimize reaction conditions.

Recycles hydrobromic acid during demethylation to cut raw material consumption and processing capacity.

Ni-PN3P pincer complexes tune metal coordination to resolve the trade-off between catalytic activity and ligand reactivity.

An integrated process converts terephthalic acid to 1,4-cyclohexanedimethanol using recycled (4-methylcyclohexyl)methanol as the esterification feedstock.

A fluorine-containing ether monocarboxylic acid aminoalkyl ester forms via perfluoroether carboxylic acid fluoride and hydroxyalkyl amine reaction.

Converts halogenated compounds into phosphorus-based diesters to eliminate environmental hazards while maintaining high flame retardancy and char yield.

Selective precipitation of amino acid phosphates via phosphoric acid addition reduces purification steps while maintaining high product purity.

A catalytic gas phase oxidation process uses a mixed metal oxide catalyst to produce acrolein from propylene.

A two-step scrubbing process extracts dinitrotoluene from crude nitration mixtures using sequential acid stages.

A pentaerythritol tetraester esterified from isobutyric and 3,5,5-trimethylhexanoic acids provides excellent refrigerant compatibility.

Process converts harmful crude oil ARN acid salts into valuable commercial products by adjusting pH to encourage formation and subsequent isolation.

Online polarimetry monitors optical rotation during melt crystallization sweating, resolving reproducibility issues in enantiomer enrichment.

Controlled heating of low-oxygen metallic iron in methacrylic acid prevents polymerization and ensures high solubility for hydroxyalkyl methacrylate synthesis.

A fuel synthesis catalyst uses a porous oxide to increase contact area for CO or CO2 dissociation.

Engineered microorganisms convert renewable biomass to muconate isomers, reducing reliance on petroleum feedstocks and minimizing greenhouse gas emissions.

Composite metal oxide components stabilize the heteropoly acid framework against structural degradation at elevated operating temperatures.

Anhydrous transesterification isolates high-purity xanthophyll crystals without water, preventing isomerization and saponification during purification.

A process precipitates a novel N-formyl-L-leucine salt to isolate Lacosamide enantiomers with high selectivity.

Rotating supergravity reactors enhance mass transfer in CO gas phase oxalate synthesis, resolving low nitrogen oxide utilization and side reactions.

Organic thiourea catalyst enables asymmetric Michael addition in water, resolving metal residue pollution while maintaining high enantioselectivity.

Substituting a fluorene ring with aromatic side chains linked by flexible bonds yields cured epoxy products with superior alkali resistance.

Metal-free acidic catalysis in aqueous media eliminates heavy metal waste and purification steps while maintaining high yields.

Concentrated sulfuric acid extracts impurities from fluorinated organic acids through liquid phase separation, resolving distillation limitations.

Formula I antidegradant compounds resist oxidative and ozonative degradation, maintaining mechanical service life in lightweight tire applications.

A catalytic system converts C5 paraffins into alcohols through sequential dehydrogenation and hydration reactions.

Continuous coprecipitation and washing prevent copper sintering during reduction, maintaining catalytic activity and durability.

Segmented microchannels resolve explosion risks and temperature fluctuations to yield high-purity adducts with narrow molecular weight distribution.

Buffer compounds maintain pH between 6 and 8 during Raney nickel hydrogenation, preventing retro-aldolization by-products without lengthy catalyst washing.

Metal triflate catalysts maintain high para-selectivity during toluene alkylation, preventing isomerization to meta isomers.

Low molecular weight phenol-functional polyamides enable robust bonding of thin semiconductor dies while maintaining mechanical strength at high temperatures.

Countercurrent fractionating zone apportion by-products between gas and liquid phases, reducing acetic acid losses and methyl bromide corrosion.

Sulfur-incorporated catalyst maintains crush strength and activity during aqueous phase reactions despite nitrogen and sulfur poisoning.

Fractional crystallisation purifies crude methyl methacrylate streams by separating ethyl acrylate impurities through controlled freezing.

Segmenting synthesis into coupling and substitution stages resolves contradictions between selectivity and process complexity.

A diaryl carbonate production method using urea and alkyl alcohol avoids toxic phosgene while generating high-purity intermediates for resin manufacturing.

Segmented reaction stages with phase-separating ionic liquids resolve yield and energy trade-offs in DMMn synthesis.

Nitrogen-donor metal-organic frameworks immobilize transition metals within porous structures to create recyclable solid catalysts.

Nitroalkane entrainer separates water from organic acids via minimum boiling azeotropes, reducing energy consumption and preventing acid losses.

A Ni-Al2O3@Al2O3-SiO2 catalyst with a coated structure disperses active nickel particles to enhance hydrogenation activity and hydrothermal stability.

Preheating aqueous formaldehyde between 30 and 220°C drives alpha-olefin reaction to produce gamma, delta-unsaturated alcohol.

A single-step phase transfer catalyzed reaction produces Calebin-A analogs from iodomethyl ketones at ambient temperature.

A chiral alcohol reacts with a racemic amine precursor to form separable diastereomeric esters for high-purity synthesis.

Selected onium salts dissolve cellulose while maintaining enzymatic activity, eliminating the need to remove ionic liquids before fermentation.