Organic Compound Preparation TRIZ Cases

Aluminum- and phosphorus-modified Mo-Fe oxide catalyst lowers methanol oxidation temperature while sustaining formaldehyde selectivity and stability.

Two cooling towers plus extraction and distillation cut water-removal energy and acrylic acid loss in lactic acid dehydration.

A cobalt(II)-THICA catalyst oxidizes para-substituted alkyl benzenes with O2 at lower THICA loading, cutting side-products and scale-up cost.

Substituted hydroquinone monoethers suppress unwanted free-radical polymerization during monomer storage and transport without inhibitor removal.

Noble metal catalysts selectively hydrogenate reactive dicarbonyls in biomass feeds, raising glycolaldehyde and acetol yield while easing separation.

A manganese-promoted MoS2 catalyst improves CO2-to-methanol selectivity while tolerating sulfur and limiting CO and CH4 by-products.

Unsaturated retarders capture peroxide free radicals to delay scorch, widen processing time, and improve polymer part quality.

A staged chiral synthesis with phase transfer catalysis and recrystallization raises yield while reducing genotoxic impurities in morpholine derivatives.

A staged reactor shut-down cools, water-replaces, and depressurizes under stirring to curb foam, fouling, and catalyst carryover.

Using 2-ethylhexanol as reactant and medium, this esterification avoids added solvent, washing, and vacuum while delivering high-purity product.

Titanium oxide catalysis with low solvent loading suppresses dimerization and disproportionation, improving unsaturated aldehyde yield and selectivity.

Maintaining stirring and hydrogen during cooling, then switching to inert gas, reduces foaming, catalyst settling, and fouling at shut-down.

Staged batch-reactor pressure control cuts reflux and energy use while improving ester material conversion and product uniformity.

Supported Pt or Ru with Mo, Re, W, or V enables ester-to-ether hydrogenation with easy catalyst separation and less salt or hazardous waste.

A cross-linked polynorbornene/carbon black network immobilizes Cu/Au nanoparticles for easy catalyst recovery, reuse, and lower copper loss.

Neutralization and fine filtration before phthalate hydrogenation cut impurities, suppress by-products, and extend catalyst life.

Tetraamminecopper impregnation on shaped SiO2 or SiC supports improves nitroaromatic hydrogenation selectivity and catalyst stability.

A three-step route improves yield and regioselectivity for 2-chloro-3-fluoro-4-alkoxy-anilines while avoiding explosive by-products.

A three-stage fixed bed catalyst scheme raises CO2-to-methanol conversion and selectivity, enabling cleaner ethylene glycol for polyester.

Batch heating above 170°C or continuous flow above 500°C raises fluoroalkyl aromatic yield and selectivity while suppressing by-products.

A four-step protected synthesis improves purity and yield of O-tert-butyl-L-seryl-O-tert-butyl-L-seryl-glycine under mild conditions.

Group 6 ligand-tuned complexes enable olefin metathesis at lower catalyst loadings while improving stability against degradation.

A continuous tank-and-tube reaction route uses 355-400°C pyrolysis to break down by-products and produce high-purity phthalonitrile compounds.

Continuous azeotropic water removal and alkanolamine addition improve amino alkyl (meth)acrylate yield while preserving catalyst recyclability.

Heating oyster meat with water at 98-100°C generates previously undetectable 3,5-dihydroxy-4-methoxybenzyl alcohol in the extract.

Mechanochemical treatment with a base forms a solid fluorinating agent that avoids spray drying, improves handleability, and reduces water adhesion.

XPS-based oxidation-state measurement helps tune copper composite catalysts for stable neopentyl glycol reactivity, strength, and low copper elution.

A silicon carbide-supported noble metal catalyst resists acid attack, avoids neutralization, and maintains MMA selectivity with lower byproduct formation.

A two-stage lactic acid dehydration reactor balances residence time and temperature to raise acrylic acid yield and suppress by-products.

Embedding NiSn nanoparticles in a carbonized chitosan matrix improves dispersity, hydrothermal stability, and catalyst recycling for higher alcohol synthesis.

Early resolution of a tetrahydroquinoline intermediate preserves optical purity, cuts purification loss, and improves 4-aminoindane yield.

Epoxide groups homogenize heterogeneous polyaromatic feedstocks, enabling polymer formation under milder processing for higher-value materials.

Depolymerized rPET is rebuilt into CHDM- or PDM-based polyester to achieve bright white color while preserving high sustainable content.

Absorbing oligomers from vaporized lactic acid cuts reactor fouling and helps maintain acrylic acid yield during production.

Higher gas linear velocity under pressurized isobutanol dehydration maintains conversion while preserving isobutylene selectivity.

Recombinant microbes and hydroxylating enzymes place —OH, —NH2, and —CO2H groups at defined fatty-chain positions for scalable specialty chemicals.

Recycling low-pressure separator gas into reactant streams before compression cuts dedicated compressor demand, energy use, and CO2 emissions.

Using water or water with 2-ethylhexanol, this hydrogenation route raises p-aminobenzoic acid-2-ethylhexyl ester purity and yield while cutting purification waste.

Continuous flow lorazepam synthesis replaces harsh oxidation and batch delays to improve scale-up, yield, purity, and safety.

Mild condensation, saponification, and hydrogenation steps simplify protected seryl-glycine synthesis while improving purity, yield, and scale-up suitability.

Catalyst particle size and surface area are tuned to cut reactor pressure loss while maintaining acrylic acid production activity.

Mixing 1,5-pentane diisocyanate residue with other isocyanate residues stabilizes storage, lowers exothermic runaway risk, and cuts separate tank needs.

Specific AMSA and acidity criteria help hydrogenation catalysts sustain glycol selectivity while limiting tungsten leaching in continuous use.

A two-stage oxidation and oxidative decarboxylation route turns renewable primary alcohols into high-purity lower olefins above 90% pMC.

A stereoselective limonene-olivetol route improves cannabidiol yield and selectivity while reducing unwanted phytocannabinoid by-products.

Calcium aluminate binder helps Cu-Mn pellet catalysts resist acid attack, retain strength, and sustain carbonyl hydrogenation activity.

Specific AMSA and ammonia desorption criteria help tungsten-based catalysts maintain glycol selectivity and resist degradation over time.

Blending cyclohexanetripropionic acid alkyl esters with terephthalates speeds gelation, lowers paste viscosity, and reduces glass transition temperature.

Blending cyclohexanetripropionic trimethyl ester with trialkyl trimellitates lowers plastisol gelling temperature while reducing viscosity and evaporation.

A staged reduction and catalytic hydrogenation route avoids 5-nitroindan byproducts and delivers 4-aminoindan in high yield without separate purification.

Pulsed injection of chemical species volatilizes oxidized metallic deposits while minimizing parasitic reactions that block oxidation steps.

A supported palladium catalyst in an adiabatic fixed-bed reactor produces allyl acetate from propylene and acetic acid.

A method for producing acetic acid that maintains low hydrogen and carbon dioxide partial pressures to suppress formic acid formation.

Cross-coupled peptide nucleic acid probes bind target DNA to form stable covalent bonds on a substrate.

Solvent-free amide reduction using a leached sponge copper catalyst improves yield and selectivity while eliminating chromium disposal hazards.

A solvent-free process for preparing metal salts of valproic acid using in-situ water removal from the reaction mixture.

Palladium bismuth gallium catalyst suppresses methyl formate by-products and improves mechanical stability during methyl methacrylate synthesis.

Aqueous formaldehyde with reduced formic acid content enables selective hydrogenation of alkanals to polymethylol compounds.

Isolate polyaminocarboxylates as acid salts under highly acidic conditions for purification by recrystallization.

Phosphate buffer activation of metallic precursors improves BDO selectivity during hydrogenation, reducing unwanted THF by-product formation.

Spray-drying converts gadobenate dimeglumine liquid into a stable solid powder, eliminating polymorphic changes and solvate formation that compromise purity.

Segmented heating removes chlorine gases to prevent thermal polymerization, ensuring stable transport of viscous polyisocyanate residues.

A low-emission epoxy resin composition uses specific cyclic amines as a hardener component to achieve rapid curing and high hardness.

Inert gas separation recirculates hydrogen-enriched syngas, reducing compressor capacity and apparatus dimensions for inert-rich feed.

Sonication milling reduces coal particle size to 10-100 microns, enabling ultraviolet hydrogen peroxide oxidation to achieve a 95% humic acid yield.

Injecting CO2 into synthesis feed gas balances water gas shift reactions over ZnO-Cr2O3 plus ZSM-5 hybrid catalysts.

Lewis acid catalysts activate carbonyl groups in esters and amides, enabling rapid reduction by stable amine boranes at lower temperatures.

Composite oxide catalysts maintain selectivity during methanol alkylation, resolving low industrial scalability and catalyst degradation issues.

Replacing corrosive hydroiodic acid with a palladium catalyst and formic acid enables industrial catechol production while reducing environmental impact.

Segmented synthesis produces benzazepine compounds with high yield and purity, resolving industrial scale manufacturing bottlenecks.

A reactive distillation column dehydrates C2+ alcohols into olefins while continuously removing products to drive the reaction forward.

Solid layered double hydroxides depolymerize lignin into aromatics, eliminating costly neutralization steps required by liquid-phase homogeneous processes.

A V-Ti-P mixed oxide catalyst composition enables vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid.

Calcium ethoxide enables low-temperature isophorone hydrocyanation, preventing diisophorone formation and reducing energy consumption.

A process for preparing fluoroleucine alkyl esters using chiral protic acid resolution of amine intermediates.

Platinum-transition metal catalyst composition increases active site dispersity on a carrier to produce ortho-phenylphenol.

A contact reaction method removes methanol by reduced pressure distillation to prepare acrylate compounds.

Solid phase extraction removes impurities from 18F-labeled choline analogues, eliminating time-consuming HPLC purification steps.

A hydroxyalkyl methacrylate production method adjusts reaction mixture water content to under 0.05 mass percent.