Organic Compound Preparation TRIZ Cases

Reversing phosphate-calcium mixing forms a hydroxyapatite-CaPP catalyst that raises acrylic acid yield and extends catalyst life.

Acyclic ether solvent with cyclic ether coexisting stabilizes active species, suppresses unwanted bonding, and lifts 1,3-disubstituted BCP yield.

Flash gas from low-pressure methanol separation is returned to reactant streams before compression, cutting extra compressor demand, CO2 emissions, and energy use.

Minor antioxidant addition helps levulinate esters resist yellowing over time and at elevated temperatures without extra processing.

Blending cyclohexanetripropionic acid trimethyl ester with C8-C9 dialkyl terephthalates lowers plastisol gelling temperature and evaporation.

Selective acetyl nitrate nitration avoids 5-nitroindan byproducts, enabling over 70% 4-aminoindan yield without separate purification.

Using cyclohexanetripropionic acid trimethyl ester with C9-C10 dialkyl phthalates preserves rapid gelling while reducing mass loss and migration.

A two-stage hydrogenation setup limits first-stage conversion to cut by-products, then completes >99.7% conversion with higher product purity.

Using biomethanol as the CO2 absorbent in a wash-flash loop removes excess carbon dioxide from syngas without added hydrogen or extra cost.

Two-stage mixed metal oxide oxidation converts allyl alcohol to acrolein and acrylic acid while suppressing propionic acid separation issues.

Structural substitutions in glutamine analog compositions preserve anticancer efficacy while lowering dose-limiting gastrointestinal toxicity.

A two-step alkoxylation and alcohol amination route creates cleavable amines that improve epoxy recyclability and polymer biodegradability.

Controlling reactive chlorine during diethyl malonate chlorination suppresses dichloro impurities and enables fluoxastrobin purity above 99.5%.

Ultrafine vinylidene fluoride bubbles improve light-driven heteroatom compound synthesis by boosting gas-liquid contact, reaction efficiency, and yield.

Chemical glycolysis and bioconversion turn PET into PCA and glycolic acid while avoiding extra monomer separation and pH-related enzyme loss.

Copper added to iron-molybdenum formaldehyde catalysts cuts CO and methyl formate losses, enabling higher-pressure methanol oxidation.

A stereoselective Carboprost route improves 15(S) and 5,6-cis control, cutting hard-to-remove isomers below 1% for scale-up.

An olefin co-feed with a cobalt-manganese Fischer-Tropsch catalyst shifts syngas conversion toward higher alcohol selectivity and productivity.

Direct heat exchange between sprayed lactic acid solution and hot vapor cuts oligomers, raises monomer vapor, and improves acrylic acid feed quality.

An acid-treated η-alumina catalyst enables lower-temperature polyol dehydration with higher selectivity, less byproduct formation, and better yield.

A hydroxylamine-based route forms cyantraniliprole intermediates without heavy metals, improving yield while cutting cost and contamination.

Porous resin or carbon media with bimodal macropores and anionic polysaccharides improve cannabinoid purification beyond 90% purity.

A common undecenylphosphonium intermediate cuts hazardous reagents and synthesis steps while improving yield for Citrus leafminer pheromones.

Crude methanol storage buffers hydrogen supply swings, keeping methanol upgrading running and reducing shutdown stress at low feed rates.

Recycled ammonia raises BCAA solubility during crystallization, improving recovery while cutting pH agents, salt waste, and production cost.

Aqueous lysine and metal salt reaction avoids abrasion and corrosion from mechanical activation while producing high-purity monolysinate compounds.

Gas stripping and acidic carbonate decomposition speed hydroformylation catalyst preforming during catalyst recycle.

A single ester-coupled iodinated polyamino compound gives hydrogels intrinsic CT visibility while avoiding complex multi-step radiopacity functionalization.

A solid-phase photosensitizer and recycle HPLC convert the unwanted diastereomer for repeated separation, improving purity and yield.

A two-step CO2-to-methanol-to-syngas route lowers process temperature, avoids reverse water-gas shift, and eases transport via liquid methanol.

Base-catalyzed stepwise synthesis improves 3-hydroxybiphenyl yield and production efficiency while keeping process complexity manageable.

Aryl-substituted borate cocatalysts improve hydrocarbon solubility while avoiding catalyst-poisoning impurities in olefin and diene polymerization.

A two-stage wet-to-dry acylation route cuts acyl chloride and base use while reducing hydrogen chloride emission in N-substituted acetamide synthesis.

Residual TBNPA is removed from trinol acrylate before polyester crosslinking, improving flame resistance, strength, and transparency.

PSA decarbonization and gas recycling turn blast furnace, converter, and coke oven gases into liquid CO2 and ethylene glycol feedstocks.

Removing or neutralizing fatty acids before fractional distillation preserves nootkatol and limits nootkatene in terpene blends.

Steam distillation and staged additive dosing cut dioxane and aldehydes while keeping amidated fatty acids stable in color during storage.

Replacing the chlorine ligand with bromine in a Pt-xanthene complex raises hydroformylation yield and catalytic efficiency.

Hydrogen peroxide with vanadium or molybdenum catalysts enables selective monosulfoxide production while reducing disulfoxide by-products, cost, and waste.

Solid crystalline amino lipid forms improve handling, purity, and storage stability while preserving delivery function for nucleic acids.

Waste-plastic-derived naphtha passes through a hydrocarbon resin facility and aromatics complex to yield recycled paraxylene at 85% purity.

Mechanical activation selectively reduces nitro compounds to amines without metal catalysts, molecular H2, or harmful solvents.

Metal-coordinating end groups form selective polymer brushes that orient block copolymer domains and enable sub-10 nm patterning with fewer process steps.

Multi-stage low-temperature crystallization separates acrylic acid from acetic acid with higher purity and yield while reducing distillation energy use.

Oxidizing impurities in the final evaporation stage prevents carbonaceous fouling and pressure shocks during sulfuric acid concentration.

Controlling NH3 desorption to 0.020 mmol/g-cat or less helps a Ru-alkali alumina catalyst raise BAC selectivity and suppress impurities.

Controlling the vaporizer-to-reactor temperature ratio and flash separation cuts high-boiling by-product buildup while stabilizing aldehyde production.

Water vapor added during methanol-to-xylene synthesis slows catalyst deactivation and extends reactor run time before maintenance.

Visible light and divalent or trivalent metal ions decompose lignin into methanol under mild conditions, cutting energy use and separation steps.

A solvent-free catalyst salt system avoids solid by-products in 2-(meth)acryloyloxy benzoic ester synthesis, improving yield and scale-up.

Concentrated aqueous N-oxyl solutions prevent fouling and extend operation time by scavenging free radicals during vinyl acetate production.

A mixed metal oxide catalyst with specific oxidation states drives formaldehyde condensation to produce unsaturated carboxylic acids.

Transition metal acetates in room temperature ionic liquids catalyze dialkyl carbonate synthesis, eliminating toxic phosgene by-products.

Segmenting synthesis into routes using inexpensive L-Serine derivatives eliminates expensive D-Serine reagents and reduces the number of steps to lower manufacturing costs.

Bromide-based molten salt systems drive lactic acid dehydration to acrylic acid, achieving higher yields and lower energy consumption than gas phase methods.

Replacing aqueous inorganic bases with an organic base catalyst prevents gelation and azeotrope formation during non-aqueous cross-aldol condensation.

Merging alkylation with in situ deprotection eliminates intermediate isolation, reducing side reactions and improving overall yield.

Partition walls create independent temperature zones that reduce hot spots and extend catalyst lifetime.

A composite catalyst with a binder resolves the contradiction between high activity and poor mechanical stability in acetophenone hydrogenation.

Reducing heating medium temperature below initial startup levels prevents catalyst deterioration and reaction runaway in fixed-bed reactors.

Operating a silver catalyst above 240°C overcomes conventional low-temperature limits, achieving higher ethylene oxide selectivity by adjusting feed components.

Enzymatic hydrolysis of glycolonitrile reduces energy consumption and simplifies purification compared to conventional chemical methods.

Ruthenium catalyst on alpha-alumina carrier enables direct hydrogenation of 4-hydroxy-2-cyclopentenone to 1,3-cyclopentanediol.

A conductive polymer composition suppresses acid diffusion to maintain resist sensitivity during electron beam lithography.

A diester plasticizing composition accelerates gelling in vinyl chloride resin formulations.

Thermal treatment melts cannabinoids in engineered cell cultures, enabling direct phase separation and decarboxylation to resolve low yield bottlenecks.

Specific 31P-NMR spectrum ratios balance structural components to enhance heat resistance and yield.

A diepoxy compound cures with alumina filler to boost heat conduction in the polymer matrix.

A process for preparing beta-keto ester compounds using alkali metal salts and organo nitriles in a mild endothermic reaction.

A diester production unit uses a flash drum for gas-liquid separation to maintain high alcohol temperatures.

Mechanical wiping maintains a thin solvent film on heated surfaces, removing ionic contaminants while preventing fouling and minimizing thermal degradation.

Calcium oxide catalysts suppress acrylic acid by-products while maintaining high maleic anhydride yields from n-butane oxidation.

Alloy catalysts replace toxic oxidants to eliminate by-products while maintaining high oxidation rates.