Organic Compound Preparation TRIZ Cases

Controlled wood chip sizing, pretreatment, hydrolysis, and catalytic conversion improve renewable mono-ethylene glycol yield and process consistency.

Organic halide in a controlled ppm range stabilizes MPDAc during storage, avoids metal corrosion, and removes the need for reduced-pressure distillation.

Cocrystallization of Formula 4 to isolate pure 5M enables scalable KRAS G12C inhibitor synthesis without complex downstream chiral separation.

Chiral metal-ligand Diels-Alder catalysis resolves the regioselectivity versus enantiomeric excess tradeoff in non-racemic cyclohexene synthesis.

Continuous crude-product analysis detects catalyst deactivation early, preventing nitrobenzene breakthrough and preserving aniline quality.

Adsorbent removal of alkali metal catalyst before distillation prevents precipitates and supports continuous ethyl carbonate production.

Specific stabilizing compounds suppress oxidation-driven coloration and support cleaner thermal regeneration of isocyanates with fewer by-products.

An I2 with silver or copper aqueous iodination route avoids corrosive chlorinating reagents while delivering fast, high-yield triiodophenol.

Intentional partial condensation in the vapor dome drains recondensed vapors before deposits build up, supporting continuous drying.

Auxiliary separation units recover DMS, methyl mercaptan, or acetone from methanol-side streams, improving purity and product flexibility.

pH adjustment and PVA addition trigger earlier valine crystallization, lowering granule moisture and drying energy demand.

Concurrent distillation of BPA purge and crude phenol cuts separate cracking steps, lowering energy use and capital cost while recovering phenol.

A non-toxic Apalutamide route uses solid-form isolation to avoid chromatography and deliver high purity for large-scale production.

Reaction control points adjust temperature, alcohol, and inert gas input to speed diester production while cutting energy use and maintaining purity.

Returning more than 30% melted circulation liquid as wash fluid improves impurity separation in low-separation crystal slurries.

A corticiolic acid route uses formylation, oxidation, and esterification to cut steps, avoid pyrophoric reagents, and improve scalability.

Copper and manganese inhibitor combinations suppress monomer polymerization in methacrylic acid systems, reducing fouling, cleaning, and downtime.

Heated liquid fed into hydraulic wash column nozzles prevents freezing and clogging, enabling stable purification and accurate safety monitoring.

Fluorine substitution lowers neutral amine interference, helping borate co-catalysts maintain catalyst activation and stability in polymerization.

A graded molybdenum-bismuth catalyst bed cuts maleic anhydride during propylene oxidation while preserving acrolein and acrylic acid yield.

Controlled alkaline hydrolysis and staged condensation stabilize SGL1 intermediates, cut impurities, and support scalable high-yield production.

Phase transfer catalysis with water and catalytic base improves beta-hydroxyketone yield while limiting impurities under milder conditions.

A crosslinkable organic film material cures in inert gas or air to improve heat resistance, adhesion, planarization, and substrate protection.

A water-immiscible solvent system suppresses side reactions and foaming in (meth)acrylic acid amide production, improving yield and purity.

Off-gas combustion and CO2 recovery recycle carbon compounds back to methanol synthesis, cutting emissions and material loss.

Waste gas from a regenerative thermal oxidizer regenerates acrylic acid catalysts with lower cost and less thermal shock than nitrogen-based methods.

A fluorene-based photoinitiator improves resin compatibility and deep curing in colored UV inks while reducing solvent use, odor, and yellowing.

Cooling-tower condensation and distillation remove acetaldehyde from lactic-acid dehydration while recovering acrylic acid and limiting polymer formation.

A quinone-based oxidation route and controlled condensation improve triarylmethane sulfone purity while avoiding dealkylation and heavy metals.

Controlling Me-IPDI content in IPDI lowers deblocking temperature while reducing yellowing in blocked isocyanates for light-colored coatings.

Photosensitized cycloaddition and hydrodeoxygenation produce a dense tetracyclic fuel that stays fluid below −60°C for aerospace use.

A catalyst-based ipconazole route replaces column chromatography with simple filtration and washing to cut solid waste and scale production.

A porous PTFE membrane contactor extracts acrylic acid from aqueous streams at ambient temperature, cutting energy use and polymerization shutdowns.

Downstream cooling before solids separation simplifies fluidised bed sugar thermolysis and supports good C1-C3 oxygenate yield at industrial scale.

Recycled ethylene and cryogenic separation let ethane ODH adjust the ethylene-acetic acid ratio to match downstream demand.

Unreacted octene purge streams are converted into mixed C8-C18 alcohols for biodegradable surfactants through hydroformylation, aldol reaction, and hydrogenation.

Continuous LED photochemistry stabilizes propellane under irradiation, improving conversion and yield for scalable bicyclopentane diketone synthesis.

Aqueous urea replaces hydrocarbon diols to decompose polyurethane under heat and overpressure, yielding a reusable liquid process medium.

Using 6- or 7-membered N-heterocyclic carbene ruthenium catalysts raises fluorine-containing olefin yield by improving catalyst electron density.

Aqueous precipitation with co-precipitated inhibitors yields high-purity vanillin (meth)acrylates without toxic solvents or extra purification.

Multiple spray nozzles and controlled spray angles spread feed evenly in dual-flow tray columns, limiting channeling and energy loss.

A partition wall and guide baffle let dense inorganic impurities settle before the reboiler, improving refined product purity.

Recycling separated impurities and syrup back into the pyrolysis reactor improves MMA purity, yield, and mass-flow efficiency.

A one-pot acylation and isomerization route uses sesquiterpenes to make vitamin A while avoiding hazardous reagents and intermediate isolation.

A chlorodifluoro-modified fluoropolymer keeps water repellency and photosensitivity while enabling lower-temperature decomposition and easier disposal.

A Fe-Mo-Si supported catalyst uses uniform composite oxide distribution to raise methanol conversion and formaldehyde selectivity while limiting molybdenum loss.

Interstage heat exchangers and increasing catalyst mass improve temperature control, conversion, and selectivity without shell-and-tube complexity.

Acetal intermediates and acid treatment raise indene acrylaldehyde purity and yield while avoiding chlorinated waste and complex isomer mixtures.

Replacing toxic phosgene reagents with chlorine-free alternatives eliminates complex purification steps while maintaining electrochemical stability.

Di-alkyl sulfonium salts enable regioselective synthesis of alpha-PC70BM methanofullerenes with high purity.

Synthesizing a gossypol L-arginine Schiff base compound via condensation to produce enhanced antitumor activities.

Direct terephthalic acid hydrogenation overcomes poor solubility via recirculated solvent, achieving high trans isomer content.

Group 2 metal compounds catalyze carboxylic acid reactions with di-t-butyl dicarbonate to produce anhydrides without solvents.

Single dividing wall distillation column replaces multiple units to reduce capital costs while maintaining high phenol and acetone recovery rates.

Acidic desorption recovers aminobenzoic acid from adsorbents, reducing yield losses and eliminating non-systemic solvents.

Reduced titanium dioxide photocatalyst converts tertiary amines to amides under visible light at room temperature.

Process produces higher ethylene amines by reacting ethanolamine compounds with a carbon oxide agent at a specific water molar ratio.

Continuous sodium bisulfite regeneration and impurity conversion eliminate waste accumulation, achieving over 95% overall yield in taurine production.

Direct sulfuryl fluoride reaction generates fluorosulfonate salts while avoiding toxic ester intermediates.

Ruthenium complexes catalyze direct alcohol and amine coupling, eliminating toxic waste from stoichiometric activating agents.

Palladium and nickel catalysts facilitate coupling reactions with sp3 carbon atoms, expanding substrate scope for complex organic synthesis.

Two-stage cooling towers separate unreacted lactic acid from reaction products to enable high-purity acrylic acid recovery.

Iodide salts convert unreactive alkyl chlorides into reactive intermediates, accelerating the reaction rate and increasing fully alkylated product yields.

Replacing chloroacetic acid routes with solid acid catalyzed hydrolysis eliminates waste salt pollution while maintaining high conversion efficiency.

Recycling mother liquor from alkyl-aromatic oxidation minimizes impurities like 4-CBA, reducing purification complexity.

Bronsted bases quench ozonides to yield aldehydes and carboxylic acids, avoiding over-reduction from uncontrolled thermal decomposition.

Sulfonic acid dissociates aminocarboxylate cations at room temperature, eliminating excess water and harsh chemical byproducts from the production process.

Oxidative bi-reforming converts methane to methanol using a single-step reaction.

CuZnAlZr composite slurry catalyst resolves activity versus reliability trade-off by maintaining stability and selectivity for 1000 hours.

Reversing flow direction during regeneration combats non-homogeneous coke accumulation, preventing catalyst degradation from hot fronts.

Heat-treated manganese accumulating plants replace toxic heavy metal oxidants with eco-friendly Lewis acid catalysts for mild organic synthesis.

Supported catalyst production using palladium and heteropoly acids enhances acetic acid yield while minimizing carbon dioxide by-product generation.

Segmented catalytic conversion of triacetic acid lactone to potassium sorbate eliminates petroleum intermediates, achieving >99% yield with high purity.

Replacing stoichiometric iron with catalytic hydrogenation eliminates waste while acid-mediated cyclization forms the ring.

Bimodal silica carrier balances attrition resistance with catalytic selectivity in propylene ammoxidation.

A method converts isophorone to neramexane using methylmagnesium chloride without intermediate purification steps.

A rhodium catalyst with a specific phosphite ligand generates iso-aldehyde in high yield.

Peroxoacid catalyst activates sulfur trioxide to react with trifluoromethane in a condensed-phase homogeneous reaction.

Cyclometallated ligands simplify synthesis of chiral catalysts, achieving high enantiomeric excess and cost-effective production of enriched compounds.

A copper catalyst enables direct C-N bond formation between unactivated substrates and primary amines without expensive rhodium complexes.

Alkali isethionate ammonolysis using ditaurinate intermediaries and hydroxide catalysts boosts taurine yield to nearly quantitative levels while reducing waste.

Hydrogen gas stream reactivates furan conversion catalysts, removing carbonaceous deposits without damaging carbon supports.

Composite amine materials store ammonia in porous matrices, reducing energy input required for liquefaction.

Thermal decomposition of neutralized biomass acids converts low density molecules into high heating value fuels suitable for aviation applications.

Replacing expensive chiral amines with recyclable amino acids reduces production costs while maintaining optical purity in Ambrisentan synthesis.

Adding MXn additives to olefin oxidation systems boosts yield and selectivity, resolving the trade-off between productivity and purity.

Continuous methanol removal shifts reaction equilibrium to enhance glycerol carbonate selectivity using a homogeneous transesterification catalyst.

Tin-promoted catalyst suppresses decarbonylation during amination, improving yield of aminodiglycol and morpholine.

A peroxocobalt complex converts nitrile groups into hydroxamic acids at room temperature and normal pressure.

Merging reaction steps into one operation with precise ligand-to-palladium ratios boosts productivity while reducing device complexity.

Cooling and stirring the melt below 57°C produces pourable crystalline particles, eliminating slow spontaneous crystal growth.

An enzyme catalyst couples protected lysine with racemic amphetamine, removing expensive peptide reagents and by-products.

Replacing heavy metal oxidants with a disposable 2-iodobenzenesulfonic acid system eliminates toxic waste while maintaining high oxidation efficiency.

Optimized base catalysts improve monomenthyl ester selectivity while reducing toxic reagent usage.

A sevoflurane production method uses hydrogen fluoride and water to convert impurities into separable species before distillation.

Iodinating agents mediate coupling of 2-(4-octylphenyl)ethyl iodide with diethyl acetamidomalonate to yield high-purity intermediates.

Continuous flow synthesis produces sulfonylurea compounds via anhydride intermediates, reducing solvent usage compared to batch processes.