Organic Compound Preparation TRIZ Cases

Cascaded crystallization loops separate diglycolic acid impurities from the mother liquor, achieving high yield with minimal purge loss.

Extract alkali from crude methanol before distillation to recycle fusel oil into synthesis gas, eliminating costly removal processes.

Novel synthesis of salmeterol intermediate using ammonium formate and palladium-carbon catalytic transfer hydrogenation.

Porous dialkoxymagnesium granules eliminate pelletizing by maintaining structural integrity at 60-200 μm, reducing fine powder and improving flow properties.

A hollow cylindrical shell catalyst coated with a composite oxide mass improves volume-specific activity in acrolein oxidation.

In situ generation of formyl butadienes via methylenation suppresses dimerization, enabling efficient production of stable odorant intermediates.

Intermediate quench gas between isothermal catalytic beds prevents hot spots and protects catalyst integrity without increasing inert concentrations.

Quaternary ammonium salts mediate epoxide ring-opening with (meth)acrylic acid anhydride, suppressing polymerization and dehydration side reactions.

Extruded Cu-Al-Mn catalyst bodies resolve the contradiction between mechanical stability and pore volume, enabling efficient fatty acid ester hydrogenation.

Staged continuous stirred tank reactors eliminate hydrogen halide from intermediates, reducing reactor volume and avoiding polymerization risks.

Urea reacts with formaldehyde to form urea-formaldehyde resin, eliminating toxicity and simplifying separation from methanol.

Heating the dialkyl ester with base and water drives decarboxylation to produce alkyl 5-methyl-5-hexenoate while suppressing toxic chloromethane by-products.

A bidentate phosphite ligand converts acidic ligand hydrolysis products into neutral phosphonate diesters to stabilize the catalyst.

A resin composition uses vinylene carbonate to enable photocuring of bismaleimide resins.

A method prepares arylvinylsulphones using a copper catalyst complex and reactive solvent recirculation to simplify synthesis.

Hydrolyzed acetaminophen reacts with a quinoline-based sulfonate reagent to form a colored compound for photometric determination.

A composite catalyst of molybdenum, cobalt, and vanadium sulfides converts synthesis gas into mixed alcohols.

Basic catalyst support neutralizes acid byproducts to extend catalyst life without external base addition, improving selectivity and space-time yield.

Methyl-substituted aliphatic polyamines resolve the trade-off between rapid curing and long pot life in epoxy resin systems.

5-nitrobenzoate derivatives block podoplanin-CLEC2 interaction to inhibit tumor cell-induced platelet aggregation without causing bleeding risks.

A boron compound with an amino acid skeleton containing a cyclo-type ring enhances selective uptake by cancer cells.

A two-stage multimetal oxide catalyst system converts propylene to acrylic acid, separating propionic acid impurities via crystallization.

Ion-exchange resin extracts metal cocatalysts from dinitrile reaction media, preventing Lewis acid impurities during distillation.

Biocatalytic conversion of reticuline intermediates to corytuberin and salutaridine via selective hydrogenation and oxidative coupling.

Injecting pressurized CO2 extracts shale gas while recycling emissions into methanol synthesis.

Redox initiation synthesizes branched poly(2-hydroxyethyl methacrylate) at room temperature, avoiding harsh conditions and unpleasant odors.