Amino Preparation From Amines TRIZ Cases

See how direct reaction of ethyleneamine with commercial polyphosphoric acid achieves thermal s

Selective Lewis acid catalysis shifts perfluorinated allylamine toward the E isomer, avoiding impractical separation and lowering global warming potential.

Anhydrous fluoride salts in fluorinated non-aqueous solvents raise fluoride-ion solubility and conductivity for lower-temperature electrochemical cells.

A dual-host red-emitting layer and tailored hole-transport region raise red-pixel turn-on voltage to limit color reddening.

This case prepares soluble, stable SF5O- salts from SF5X and inorganic bases at room temperature, avoiding specialized gas equipment.

An acid, nitrite, and aniline route creates covalent color centers on SWCNTs in seconds at high concentrations.

This case uses Suzuki-Miyaura coupling with palladium phosphine ligands to improve selectivity and simplify biphenylamine synthesis.

Palladium catalyzed coupling of halogenated and boronic acid derivatives with phosphine ligands produces aromatic compounds with diverse substituents.

Ambient synthesis of metal halide perovskite nanoplatelets resolves the trade-off between ease of manufacture and luminescent quantum yield.

Synthesizing para-alkylated diphenylamines with 15-carbon branched propene oligomers reduces piston deposits and sludge in engine crankcases.

Carbon dioxide coordinates with transition metal catalysts to enable selective C-H bond functionalization in amine and alcohol substrates.

Controlled amine-to-formaldehyde ratios eliminate free formaldehyde and prevent solid formation, resolving equipment plugging.

Thiourea replaces enzymes to drive ornithine decarboxylation above 100°C, suppressing ring closure side reactions and boosting yield.

Blending 1,4-bis(aminomethyl)cyclohexane with alkali metal compounds and xylylenediamine to isomerize the mixture into trans-rich product.

N-bromosuccinimide brominates 1H-inden-2-yl-amine in water to yield pure intermediates, eliminating chlorinated solvents and complex purification.

Replacing palladium with iron and arylhydrazines to synthesize 2-aminobiphenyls, reducing costs and environmental impact.

Functionalizing poly-alpha-olefins with diphenylamine eliminates ester requirements and converts low-value distillate into high-viscosity lubricants.

Recombinant hosts convert renewable glutamate into 1,4-butanediol and putrescine using decarboxylase enzymes to reduce energy consumption.

Quaternary alkylammonium hypochlorite solution removes noble metals from semiconductor wafers through strong oxidation.

Solid triphosgene and aqueous hydrochloric acid replace toxic phosgene gas in diisocyanate synthesis, preventing lens yellowing.

Specific phosphine ligands enable selective Suzuki coupling of chlorinated biphenylanilides, suppressing triaryl byproduct formation.

Activated mixed catalyst improves deuteration ratios at ortho positions by combining palladium, platinum, rhodium, iridium, ruthenium, nickel, or cobalt.

Reduced-pressure distillation removes zirconium impurities below 10 mass ppm to ensure semiconductor film purity.

Ethylene addition to amine compounds prevents carbonation and maintains storage stability.

Light-driven nickel catalysis forms aryl carbon-nitrogen bonds at room temperature, eliminating harsh thermal conditions and precious metal requirements.

Arylsulfonic acid amine salt vinyl monomer with tertiary amine substituents provides amphiphilic solubility in water and organic solvents.

Direct aluminum alkyl catalyzed synthesis replaces complex multi-step routes, reducing by-products and improving commercial production reliability.

Replacing nitration with carbodiimide coupling eliminates explosive intermediates and boosts yield.

Polyethercarboxylate ionic liquids maintain thermal stability while reducing viscosity and hygroscopicity in high-duty lubricant applications.

Dosing liquid diamine onto aromatic dicarboxylic acid powder enables solid-state polymerization that avoids solvent use and reduces reaction time.