Organic Compound Preparation TRIZ Cases

A single-step oxidative process introduces two double bonds to synthesize retinal under mild conditions.

Halo-substituted alkyl alcohol synthesis reduces steps and toxic reagents, improving efficiency while lowering environmental impact.

A supported catalyst with rhodium subnanoparticles on magnetic iron oxide reduces aromatic nitro compounds to amines.

Modified zirconium phosphate frameworks prevent carbon deposition, extending catalyst lifespan while sustaining high acrolein yield.

A bi-functional catalyst system converts sorbitol into ethylene glycol and propylene glycol using hydrogen.

Alkoxy carbonyl hexenoic acid compounds undergo decarboxylation to produce fragrance intermediates with optimized E/Z and beta,gamma/alpha,beta ratios.

Ion exchange resins extract iron contaminants from methanol carbonylation streams, preventing rhodium deactivation and sustaining carbon monoxide productivity.

A fluorene polyfunctional photoinitiator enables high photosensitivity curing in photosensitive resin compositions.

Sulfonic acid derivatives enable selective mono-ester production from sterically hindered acids, avoiding polyether side reactions and reducing catalyst costs.

Selective partial hydrogenation converts glycols to fuel blendstocks, reducing hydrogen consumption by 50% compared to complete hydrotreating.

Segmented pretreatment units eliminate sulfur and nitrogen impurities, realigning the H2/CO2 ratio for optimal methanol production.

Immobilized tungsten oxo alkylidene complexes on silica enable efficient olefin metathesis at low temperatures while allowing easy catalyst separation.

Segmented distillation reduces energy consumption for dialkyl carbonate recovery compared to traditional single-column setups.

Diazotization of naphthalene disulfonic acid creates a novel compound that neutralizes free radicals, addressing the need for effective antimicrobial agents.

Using a 2-hydroxybenzenesulfonic acid catalyst reduces hydroxyacetone byproduct concentration below 100 ppm, eliminating alkaline neutralization steps.

Acetal protection stabilizes intermediates during metalation and reduction steps to produce high-purity terminal conjugated dienal compounds.

Segmenting a rectification column and recycling reactants prevents polymerization while maintaining high product purity.

Combining titanium complex grease with lithium soap resolves incompatibility issues while enhancing high-temperature performance and shelf life.

Gas aeration suspends catalyst particles in the reactor, eliminating mechanical shear that causes abrasion during continuous operation.

A ring-shaped catalyst with a concavely curved end face optimizes gas flow patterns around the solid body.

Direct condensation of glycerin and fatty alcohols eliminates hazardous chlorohydrin intermediates to yield safe, cost-effective surfactants.

Comproportionation of PdBr2 and Pd(PtBu3)2 yields high-purity [Pd(μ-Br)(PtBu3)]2, enabling recyclable isomerization catalysis.

Colloidal quantum dots absorb visible light to drive photocycloadditions, overcoming fast isomerization that limits conventional methods.

Replacing sulfuric acid with methanesulfonic acid reduces corrosiveness while maintaining reaction speed for storage-stable peracetic acid.

Hybrid fermentation and chemical conversion lowers epothilone manufacturing costs while managing process complexity.

Distillation separates methacrolein from aqueous waste, enabling catalyst recovery that cuts trimethylamine byproducts.

Matching redox potentials in a dual-polymer electrochromic device improves light/dark contrast and cyclability despite mismatched polymer properties.

Polyhedral palladium nanoparticles on nitrogen-doped hierarchical porous carbon suppress corner atoms to prevent over-hydrogenation of unsaturated ketones.

A dividing wall column purifies crude tert-butyl acrylate through internal partitioning and side streams.

Liquid-liquid extraction recovers rhodium catalysts without thermal decomposition, maintaining integrity while separating high-boiling aldehydes.

Heterogeneous catalysts convert oxygenated terpenoids into deoxygenated fuels, resolving low conversion efficiency and complex product distribution issues.

Alkanol extraction recovers aminobenzoic acid from aqueous mother liquor, resolving yield losses caused by high solvent water solubility.

A membrane reactor integrates water-permeable membranes with condensing surfaces to remove reaction byproducts directly from the hydrogenation zone.

Phase transition converts waxy solids into stable forms, resolving storage instability.

A two-step synthesis converts polyphenols to high-purity poly(ortho-methylphenol) using secondary amines and hydrogenolysis.

Converting intermediates to stable amine salts eliminates toxic carbon oxysulfide use, ensuring supply reliability while improving yield.

Adjusting hydrolysis pH prevents color contaminant intermediates in glycol synthesis.

Heterogeneous copper oxide catalyst enables liquid phase amine synthesis with high conversion and selectivity.

Dialkyl polysulfide composition with controlled disulfide and trisulfide content forms protective metal sulfide films on metal surfaces.

Adjusting the carbon monoxide to hydrogen ratio in oxo gas during rhodium-catalyzed hydroformylation.

Unsaturated scorch retarders react with peroxide free radicals to form stable intermediates during polymer processing.

A mesoporous acidic ion-exchanger catalyst reacts aromatic amines with aldehydes to produce diaminodiphenyl alkanes.

Incorporating an acetal compound into the resist matrix suppresses acid decomposition cracks and air bubbles in thick films.

Aligning solid catalysts in a straight line within the microchamber prevents channeling and reduces pressure loss during liquid phase chemical reactions.

Dialkylcarbonate mediates esterification to eliminate water formation, preventing acylase inhibition and boosting beta-lactam synthesis yields.

Modified surfactant structures replace conventional detergents to maintain enzyme stability while eliminating non-specific product formation in PCR systems.

Segmented conversion of aqueous 2,3-butanediol through methyl ethyl ketone and 2-butanol intermediates to produce hydrocarbon fuels.

Controlling butene and butadiene in isobutylene feedstock prevents impurities, eliminating burdensome recrystallization while maintaining high yield.

Limiting formyl and acryloyloxy impurities below 100 ppm preserves catalyst activity, preventing rapid deactivation by acrolein and acrylic acid.