4354-47-6

Upstream product

• 75-86-5 2-hydroxy-2-methylpropanenitrile 
• 2043-61-0 cyclohexanecarbaldehyde 
• 151-50-8 potassium cyanide 
• 134863-85-7 2-cyclohexyl-2-(trimethylsilyloxy)acetonitrile 
• 98-89-5 Cyclohexanecarboxylic acid 
• 7677-24-9 trimethylsilyl cyanide 
• 26565-45-7 C₁₃H₂₆O₂Si 
• 1600-49-3 (isocyanomethanetriyl)tribenzene 
• 74-90-8 hydrogen cyanide 
• 134863-85-7 (R)-2-cyclohexyl-2-(trimethylsilyloxy)acetonitrile 
• 591-78-6 n-hexan-2-one 
• 146450-88-6 (S)-2-cyclohexyl-2-(trimethylsilyloxy)acetonitrile 
• 143-33-9 sodium cyanide 
• 108-05-4 vinyl acetate 

Downstream Products

• 125849-99-2 3,5-Dichloro-6-cyclohexyl-[1,4]oxazin-2-one 
• 4957-67-9 2-cyclohexyl-2-hydroxyethanoic acid N-t-butylamide 
• 4442-94-8 2-cyclohexyl-2-hydroxyacetic acid 
• 4354-47-6 (R)-2-cyclohexyl-2-hydroxyacetonitrile 
• 4354-47-6 (S)-2-cyclohexyl-2-hydroxyacetonitrile 
• 1339205-72-9 1-(cyclohexylmethyl)pyrrolidine-2-carbonitrile 
• 477531-76-3 cyclohexyl(pyrrolidin-1-yl)acetonitrile 
• 53585-93-6 (R)-(-)-hexahydromandelic acid 
• 84619-59-0 (-)-2-cyclohexyl-2-hydroxyethylamine 
• 148705-98-0 Toluene-4-sulfonic acid (R)-cyano-cyclohexyl-methyl ester 
• 887363-38-4 C₁₇H₂₁NO₃ 
• 40651-95-4 2-amino-2-cyclohexylacetonitrile 
• 57230-08-7 1-amino-2-cyclohexylethan-2-ol 

Relevant academic research and scientific papers

A High-Throughput Screening Method for the Directed Evolution of Hydroxynitrile Lyase towards Cyanohydrin Synthesis

Chiral cyanohydrins are useful intermediates in the pharmaceutical and agricultural industries. In nature, hydroxynitrile lyases (HNLs) are a kind of elegant tool for enantioselective hydrocyanation of carbonyl compounds. However, currently available methods for demonstrating hydrocyanation are still stalled at precise, but low-throughput, GC or HPLC analyses. Herein, we report a chromogenic high-throughput screening (HTS) method that is feasible for the cyanohydrin synthesis reaction. This method was highly anti-interference and sensitive, and could be used to directly profile the substrate scope of HNLs either in cell-free extract or fermentation clear broth. This HTS method was also validated by generating new variants of PcHNL5 that presented higher catalytic efficiency and stronger acidic tolerance in variant libraries.

CO2-Enabled Cyanohydrin Synthesis and Facile Iterative Homologation Reactions**

Thermodynamic and kinetic control of a chemical process is the key to access desired products and states. Changes are made when a desired product is not accessible; one may manipulate the reaction with additional reagents, catalysts and/or protecting groups. Here we report the use of carbon dioxide to accelerate cyanohydrin synthesis under neutral conditions with an insoluble cyanide source (KCN) without generating toxic HCN. Under inert atmosphere, the reaction is essentially not operative due to the unfavored equilibrium. The utility of CO2-mediated selective cyanohydrin synthesis was further showcased by broadening Kiliani–Fischer synthesis under neutral conditions. This protocol offers an easy access to a variety of polyols, cyanohydrins, linear alkylnitriles, by simply starting from alkyl- and arylaldehydes, KCN and an atmospheric pressure of CO2.

Enantioconvergent Cu-Catalyzed Radical C-N Coupling of Racemic Secondary Alkyl Halides to Access α-Chiral Primary Amines

α-Chiral alkyl primary amines are virtually universal synthetic precursors for all other α-chiral N-containing compounds ubiquitous in biological, pharmaceutical, and material sciences. The enantioselective amination of common alkyl halides with ammonia is appealing for potential rapid access to α-chiral primary amines, but has hitherto remained rare due to the multifaceted difficulties in using ammonia and the underdeveloped C(sp3)-N coupling. Here we demonstrate sulfoximines as excellent ammonia surrogates for enantioconvergent radical C-N coupling with diverse racemic secondary alkyl halides (>60 examples) by copper catalysis under mild thermal conditions. The reaction efficiently provides highly enantioenrichedN-alkyl sulfoximines (up to 99% yield and >99% ee) featuring secondary benzyl, propargyl, α-carbonyl alkyl, and α-cyano alkyl stereocenters. In addition, we have converted the masked α-chiral primary amines thus obtained to various synthetic building blocks, ligands, and drugs possessing α-chiral N-functionalities, such as carbamate, carboxylamide, secondary and tertiary amine, and oxazoline, with commonly seen α-substitution patterns. These results shine light on the potential of enantioconvergent radical cross-coupling as a general chiral carbon-heteroatom formation strategy.

Nickel-Catalyzed, Reductive C(sp3)?Si Cross-Coupling of α-Cyano Alkyl Electrophiles and Chlorosilanes

A nickel/zinc-catalyzed cross-electrophile coupling of alkyl electrophiles activated by an α-cyano group and chlorosilanes is reported. Elemental zinc is the stoichiometric reductant in this reductive coupling process. By this, a C(sp3)?Si bond can be formed starting from two electrophilic reactants whereas previous methods rely on the combination of carbon nucleophiles and silicon electrophiles or vice versa.

Method for synthesizing alkyne through catalytic asymmetric cross coupling (by machine translation)

The invention belongs to the field of, asymmetric synthesis, and discloses a method for catalyzing asymmetric cross- coupling to synthesize: an alkyne, and the L method comprises, the following steps, of A: preparing B a cuprous, salt and C a: ligand; preparing a catalyst; adding a base; reacting the compound with the compound with the compound; and reacting the compound with the compound. Of these, one of them, X is selected from the group consisting of, R halogens. 1 Optionally substituted heteroarylsulfonylcyanamide groups selected from the, group consisting, of optionally substituted, phenyl groups In-flight vehicle, R6 Trialkyl silyl groups or alkyl radicals, R2 Cycloalkyl radicals optionally substituted with an, optionally substituted alkyl, (CH radical2 )n R4 Multi,layer chain, n＝0-10,R saw blade4 A group selected, from, the group consisting of phenyl, alkenyl, aralkynyls, noonyloxy,and, noonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylphenyl disiloxy-radicals. R3 A ligand, selected from hydrogen or any of the functional groups, is selected from the group consisting of, hydrogen and any L other functional group. The method, R disclosed by the, A invention has the, advantages of good catalytic, R ’ effect, wide application range. and high catalytic efficiency, and the, method disclosed by the, invention has the. advantages of good catalytic effect, wide application range and high catalytic efficiency. (by machine translation)

OXAZOLE AND THIAZOLE DERIVATIVES AS INHIBITORS OF ASK1

The present technology is directed to compounds of formula (I), compositions thereof, and methods related to inhibition of ASKI. In particular, the present compounds and compositions may be used to treat ASKl-mediated disorders and conditions, including,

Visible-Light-Driven N-Heterocyclic Carbene Catalyzed γ- and ?-Alkylation with Alkyl Radicals

The merging of photoredox catalysis and N-heterocyclic carbene (NHC) catalysis for γ- and ?-alkylation of enals with alkyl radicals was developed. The alkylation reaction of γ-oxidized enals with alkyl halides worked well for the synthesis γ-multisubstituted-α,β-unsaturated esters, including those with challenging vicinal all-carbon quaternary centers. The synthesis of ?-multisubstituted-α,β-γ,δ-diunsaturated esters by an unprecedented NHC-catalyzed ?-functionalization was also established.

Acceptorless and Base-free Dehydrogenation of Cyanohydrin with (η6-Arene)halide(Bidentate Phosphine)ruthenium(II) Complex

Ruthenium-catalyzed dehydrogenation of cyanohydrins under acceptorless and base-free conditions was demonstrated for the first time in the synthesis of acyl cyanide. As opposed to the thermodynamically preferred elimination of hydrogen cyanide, the dehydrogenation of cyanohydrins could be kinetically controlled with ruthenium (II) bidentate phosphine complexes. The effects of the arene, phosphine ligands and counter anions were investigated in regard to catalytic activity and selectivity. Selective dehydrogenation can occur via β-hydride elimination with the experimentally observed [(alkoxide)Ru] complex. (Figure presented.).

Copper-Catalyzed Substitution of α-Triflyloxy Nitriles and Esters with Silicon Nucleophiles under Inversion of the Configuration

A copper-catalyzed nucleophilic displacement of α-triflyloxy nitriles and esters with silicon nucleophiles allows for the stereospecific generation of highly enantioenriched α-silylated carboxyl compounds. The enantioselective synthesis of α-silylated nitriles is unprecedented. The catalytic system exhibits good functional group tolerance. The stereochemical course of the substitution is shown to proceed with inversion of the configuration. The new reaction is an addition to the still limited number of methods for catalytic C(sp3)-Si cross-coupling.

Br?nsted Acid-Catalyzed Cyanotritylation of Aldehydes by Trityl Isocyanide

Cyanohydrins are versatile intermediates toward valuable organic compounds like α-hydroxy carboxylic acids, α-amino acids, and β-amino alcohols. Numerous protocols are available for synthesis of (O-protected) cyanohydrins, but all procedures invariably rely on the use of toxic cyanide sources. A novel cyanide-free synthesis of O-trityl protected cyanohydrins via a catalytic Passerini-type reaction involving aldehydes and trityl isocyanide is reported. The feasibility of a catalytic asymmetric reaction is demonstrated using chiral phosphoric acid catalysis.