Organic Compound Preparation TRIZ Cases

Two-stage expansion with intermediate cooling prevents rhodium precipitation during membrane separation, reducing catalyst losses.

A spirofluorene derivative molecular glass enables high-resolution photolithography patterning.

Acid and enzyme treatment converts whole stillage fiber into fermentable sugars, recovering extra ethanol while reducing byproduct digestibility issues.

Purifying fluorocyclopropane derivatives through distillation followed by alkali washing before thermal decomposition.

Transition metal salts replace stoichiometric reagents in the Scriabine reaction, reducing environmental impact while maintaining high catalytic yield.

A porous permanently polarized hydroxyapatite structure boosts catalytic activity through controlled pore architecture and electrostatic treatment.

Synthesizing boronic acid derivatives to inhibit beta-lactamase enzymes, preserving antibiotic efficacy against resistant bacterial strains.

Novel substituted amidobenzoate compounds function as internal electron donors in Ziegler-Natta catalysis to enhance polymerization productivity.

Hydrogen bond donor coformers stabilize ubiquinol against oxidation, eliminating complex inert packaging needs.

Limiting sulfur in phosgene prevents coloring substance formation during amine reaction, eliminating dark product issues and removing purification steps.

CBDO-1 diol monomers replace carcinogenic BPA precursors while maintaining thermal stability and mechanical strength.

Reacting sacubitril dicyclohexylamine salt with valsartan eliminates ion exchange steps and reduces calcium residues.

A synthesis route for bicyclooctanone using dichloroketene cycloaddition and zinc reduction to form the target structure.

Immobilizing the catalyst on a porous ceramic support prevents deactivation and flooding, maintaining conversion rates while eliminating catalyst loss.

Mixed monophosphate and condensed phosphate anions in composite catalysts drive lactic acid dehydration, resolving low yield and side product formation.

Segmented distillation stages control MEG concentration between 60 and 75 wt percent to prevent high soluble salt deposition in the first distiller.

Replacing titanium chloride with redox-active organo-titanium eliminates hazardous hydrochloric acid fumes during V-Ti-P catalyst preparation.

Metallic salt catalysts mediate selective hydrolytic depolymerization, avoiding black tar formation and harsh oxidants.

Soluble ruthenium catalyst lowers hydrogenation pressure while liquid-liquid extraction removes heavy metals to meet ICH limits.

Pre-mixing glycine with base establishes buffer capacity that prevents pH spikes during cyanamide addition, reducing salt formation and improving yield.

Nitrided mixed oxide catalyst with dual metal cations resolves low yield and high side product formation in formaldehyde condensation.

Biological enzyme catalyzes stereoselective ring-opening of 3-isobutylglutarimide to produce chiral intermediate.

Simple chiral amines replace complex catalysts in hydrocyanation, enabling scalable synthesis of enantiomerically enriched amino acids with reduced hazard.

Lowering evaporation pressure reduces thermal stress on diamines, preventing decomposition and solid formation during gas-phase phosgenation.

A phenylacetate-based synthesis route for diclofenac sodium achieves 67% yield through sequential nitration and hydrogenation steps.

Reuses mother liquor in distillation to boost yield and efficiency while cutting waste from anhydrosugar alcohol production.

Etheramine mixture cures epoxy resin at lower temperatures, reducing manufacturing time and energy costs while maintaining flexibility.

Reducing aqueous reflux ratios in a distillation column lowers energy consumption and capital expenditure while maintaining product purity.

A one-pot process converts substituted phenols to 7-cyano quinone methides via sequential chloromethylation, cyanomethylation, and oxidation steps.

Adding alcohols breaks the azeotrope between water and 3-hydroxy-2,2-dimethylpropanal to enable efficient separation.

Replacing toxic lead reagents with hydrogen peroxide eliminates environmental pollution while maintaining high synthesis yields.

Water forms azeotropes to extract terpene and terpenoid impurities, resolving the difficulty of purifying dry acetic acid.

A choline-based ionic liquid composition dissolves cellulose without enzymes.

Rapid heating of carbohydrate feed above 225°C drives retro-aldol conversion using a catalyst, reducing alkitol and humin side products to improve selectivity.

Returning glyoxal-containing residue near the bottom of a low-boiling separation column prevents polymer destabilization and maintains purification efficiency.

Non-ionic surfactants enhance emulsification in this two-phase system, increasing the contact interfacial area to resolve low conversion and selectivity issues.

Patsnap Eureka TRIZ case details methionine production processes that reduce thiols and hydrogen sulfide levels to prevent equipment corrosion.

Adjusting acidification pH to 5.5 and using acidified washing removes excess pyridine, raising yield from 32% to 70%.

Hydrotreating levulinic acid dimers yields low-aromatic fuel, resolving the contradiction between production capacity and quality consistency.

Optimizing water conditions in the hydrogenation reactor improves carbon efficiency and selectivity while simplifying downstream purification.

Ion exchange mechanism isolates high-purity taurine and salt, resolving low extraction rates in ethylene oxide synthesis.

A plasticizer composition blends terephthalate and cyclohexane diester materials to enhance tensile strength and elongation rate.

Iodine-containing polymers with hypervalent iodine moieties facilitate fluorination while allowing easy separation and recovery of the catalyst.

Heating the reaction mixture at 140-260°C decomposes chlorine-containing components in the tar, suppressing carbonyl chloride generation and improving safety.

Multi-stage oxidative digestion purifies terephthalic acid without liquor exchange, reducing carbon burn losses and eliminating expensive purification systems.

Stripping gas extracts acrylic acid from acidic water, preventing yield loss from combustion.

Zirconium oxide moieties on silica retards surface sintering and extends catalyst lifespan during methacrylic acid production.

Segmented catalyst beds suppress coking during ketoacid conversion, improving yield while maintaining single reactor simplicity.

Room temperature metathesis of iron salts with carboxylates reduces energy consumption for large-scale hydrocracking catalyst production.