Organic Compound Preparation TRIZ Cases

Aliphatic ligand modification on ruthenium catalysts resolves the trade-off between enantioselectivity and total yield in 4-haloacetoacetate hydrogenation.

Temperature modulation and vacuum nucleation isolate high-purity cannabinoid crystals, eliminating flammable solvent hazards and reducing chemical waste.

Inter-stage condensation extracts products from adiabatic reactors, shifting equilibrium to boost conversion without recycle compressors.

Direct bromination of m-chloropropiophenone eliminates costly chlorination steps and reduces environmental pollution while achieving 70%-80% yield.

A process recovers and regenerates rare earth metal salts used as catalysts in dialkyl carbonate synthesis.

A cyclic imide catalyst oxidizes alkylaromatic compounds to hydroperoxides at controlled temperatures.

A cobalt-chromium-molybdenum alloy carrier coated with ceria and zinc oxide supports palladium nanoparticles for selective hydrogenation.

A two-stage turboexpander system recovers shaft work from xylene oxidation off-gas while maintaining water in vapor form.

Solid acid catalyst converts levulinic acid to methyl vinyl ketone at elevated temperatures, eliminating costly precious metals and hydrogen requirements.

A pyrolysis chamber converts exhaust gas into syngas using thermal decomposition and carbon reactions.

A rhodium-ruthenium bimetallic catalyst on magnesium-aluminum oxide hydrogenates 4,4′-methylenedianiline to bis(para-amino cyclohexyl) methane.

Catalyst-free reaction of multibranched aliphatic compounds yields transparent esters.

Oxopiperazine helix mimetics inhibit the HIF1α-p300/CBP interaction, resolving the trade-off between binding affinity and synthetic feasibility.

A laminarization means in the discharge area of a tubular reactor creates a smooth gas flow profile for acrylic acid production.

Replacing complex microbial fermentation with catalytic oxidation reduces production costs and environmental pollution.

A process for preparing substituted aromatic carboxamides using carboxylic acid esters as solvents without auxiliary bases.

Carbon-supported copper manganite nanoparticles catalyze butan-2-ol dehydrogenation to methyl ethyl ketone.

Process separates ethylene streams to use ethane as ballast, eliminating complex splitters and reducing energy costs.

Alkali metal catalyzed tertiary amine synthesis reduces separation steps and boosts productivity by eliminating time-intensive purification bottlenecks.

Visible light drives aldehyde oxidation to carboxylic acids using carbon dioxide as the oxidant without any catalyst.

Protecting furanics as hydrazones enables milder Diels-Alder reactions, preventing decomposition while maintaining carbonyl carbon atoms for high selectivity.

A catalytic process using transition metal complexes and specific organic solvents to produce unsaturated carboxylic acid salts.

A (meth)acrylate copolymer with controlled crosslinking provides foldable soft intraocular lenses.

L-phenylalanine p-toluene sulfonamide forms chiral salts with racemic mixtures to isolate the S-enantiomer, achieving high purity without complex catalysts.

Replacing toxic Lewis acids with methanesulfonic acid eliminates hazardous waste while maintaining high reaction yields in industrial acylation processes.

Shaped ruthenium cobalt catalysts boost ethylenediamine selectivity above 60 percent while limiting cyclic amine by-products during hydrogenative amination.

Silica catalyst converts residual glycerin into formic acid without purification, leveraging impurity-driven homogeneous catalysis to lower costs.

Unprotected guanidinium salts enable direct radiolabeling of MIBG precursors without intermediate protection steps.

Gamma-branched alcohol-derived ester compounds boost lubricating oil base stock polarity to improve solubility and dispersancy of polar additives.

Weak Lewis acids stabilize the CF3- anion while regenerating as catalysts, eliminating stoichiometric waste from traditional strong acid methods.

Titanium dioxide support doped with cobalt cations and transition metal nanoparticles produces butanol via heterogeneous catalysis.

High Reynolds number dispersion in a solvent-water mixture lowers catalyst requirements and reaction time for farnesyl acetone production.

Driving jet nozzles circulate reaction mixtures to prevent local dinitrotoluene overconcentrations that cause self-accelerating decomposition risks.

Continuous flow reactors using solid acid catalysts produce 3-methyl-3-pentene-2-one while eliminating aqueous waste streams from mineral acid processes.

Segmenting condensation and acetylation stages optimizes yield and purity for liquid crystal polyester polymers while maintaining manufacturing economy.

Phase transfer catalysis enables high-yield conversion of explosive nitrate esters to ketones while minimizing phenol byproducts.

Continuous flow reactors with immobilized catalysts eliminate complex recovery steps to lower production costs for renewable acrylic acid.

Polythiols accelerate isomerization rates of unsaturated ketones and aldehydes while preventing degradation common with monothiols.

Aeration of crude oligoglycol carboxylic acid esters with oxygen followed by gentle distillation under reduced pressure.

Oxidation of tertiary amines forms stable oxazoles to resolve incomplete detection and differentiation of methylation states.

Controlled crystallization of aqueous MGDA solutions produces stable, non-hygroscopic powders that prevent lump formation and yellowing during storage.

Steam re-calcination at 100°C to 550°C improves mixed metal oxide catalyst selectivity by reducing process complexity and handling steps.

A process computer balances heat flow to stabilize the degree of crystallization, preventing apparatus damage from unstable pressure and permeability.

Reacting a fullerene dimer with an aromatic compound introduces ester structures to resolve the trade-off between solvent solubility and LUMO level precision.

A two-step process converts mixed butenes into diisobutenes and butanols using selective catalysts.

Zirconium catalyst converts phthalic anhydride to phthaloyl dichloride, eliminating unreacted anhydride impurities and avoiding toxic phosgene.

Alternating pulsed saccharide flow with solvent rinses feed pipes, preventing blockages and degradation that reduce reactor productivity.