84782-52-5

Upstream product

• 1666-13-3 diphenyl diselenide 
• 590-86-3 isovaleraldehyde 
• 5707-04-0 Phenylselenyl chloride 
• 71098-88-9 N-phenylselanylphthalimide 
• 34837-55-3 Phenylselenyl bromide 
• 42572-42-9 phenylselenium trichloride 
• 645-96-5 Benzeneselenol 

Downstream Products

• 123453-96-3 (5S,6S,1'RS,2'RS)-5-<(1-ethoxyethoxy)methyl>-6-(1'-hydroxy-3'-methyl-2'-phenylselenobutyl)-2-cyclohexen-1-one 
• 123453-96-3 (5S,6S)-5-(1-Ethoxy-ethoxymethyl)-6-((1S,2R)-1-hydroxy-3-methyl-2-phenylselanyl-butyl)-cyclohex-2-enone 
• 123453-96-3 (5S,6S,1'R^*,2'R)-5-<(1-ethoxyethoxy)methyl>-6-(1'-hydroxy-3'-methyl-2'-phenylselenobutyl)-2-cyclohexen-1-one 
• 1666-13-3 diphenyl diselenide 
• 191099-49-7 3-methyl-2-phenylseleno-1-trimethylsilyloxy-1-butene 
• 154870-06-1 (E)-5-Methyl-4-phenylselanyl-hex-2-enoic acid ethyl ester 
• 61228-92-0 (3S,8R,9R,10S)-(-)-periplanone-B 
• 263262-57-3 1-benzyl-2-isopropylaziridine 
• 263262-50-6 N-benzyl-3-methyl-2-(phenylselanyl)butan-1-amine 
• 730907-43-4 phenyl-N-(3-methyl-2-(phenylselanyl)butylidene)methanamine 

Relevant academic research and scientific papers

Enantioselective synthesis of α-alkyl,α-vinyl amino acids via [2,3]-sigmatropic rearrangement of selenimides

Chiral α-alkyl,α-vinyl amino acids (quaternary vinyl glycine derivatives) are prepared with high levels of enantiomeric purity by [2,3]-sigmatropic rearrangement of allylic selenimides. The required trisubstituted allylic selenides are prepared by an orga

Polystyrene-supported proline and prolinamide. Versatile heterogeneous organocatalysts both for asymmetric aldol reaction in water and α-selenenylation of aldehydes

A simple and efficient synthesis of polystyrene-supported proline and prolinamide has been carried out. Polystyrene-supported proline has been used as organocatalyst in the asymmetric aldol reaction between cyclohexanone and substituted benzaldehydes in w

ORGANOCATALYSTS AND METHODS OF USE IN CHEMICAL SYNTHESIS

The present invention pertains generally to compositions comprising organocatalysts that facilitate stereo-selective reactions and the method of their synthesis and use. Particularly, the invention relates to metal-free organocatalysts for facilitation of stereo--selective reactions, and the method of their synthesis and use. These compounds have the structure of the Formulas (I) and (II). Where X is independently selected from CH2, N-Ra, O, S or C=O; Y is CH2, N-Ra, O, S or C=O, with the proviso that at least one of X or Y is CH2, and preferably both of X and Y are CH2; Ra is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6alkyl including a C3-C6 cyclic alkyl group, or an optionally substituted aryl group, preferably an optionally substituted phenyl group; Rb is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6 acyclic or a a C3-C6 cyclic alkyl group, CHO, N(Me)O, CO(S)Ra or the group of Formula (III). Where Rc and Rd are each independently H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C12 alkyl, more preferably a C1-C6 alkyl, and an optionally substituted aryl group, or together Rc and Rd form an optionally substituted carbocyclic or optionally substituted heterocyclic ring; R1 is OH, OR, NR'R", NHC(=O)R, NHSO2R; R2 is H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C6 alkyl, an optionally substituted aryl group or a =O group (which establishes a carbonyl group with the carbon to which =O is attached; R3 is H, OH, F, C1, Br, I, Cl, an optionally substituted C1-C20 alkyl, alkenyl or alkynyl ("hydrocarbyl") group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl, such that the carbon to which R3 is attached has an R or S configuration; R is H, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group, R' and R" are each independently H, an optionally substituted C1-C20 alkyl group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group; or together R' and R" form an optionally substituted heterocyclic, preferably a 4 to 7 membered optionally substituted heterocyclic group or an optionally substituted heteroaryl ring with the nitrogen to which R' and R" are attached; and wherein said compound is free from a metal catalyst.

Direct, facile aldehyde and ketone α-selenenylation reactions promoted by L-prolinamide and pyrrolidine sulfonamide organocatalysts

A new catalytic method for direct α-selenenylation reactions of aldehydes and ketones has been developed. The results of exploratory studies have demonstrated that L-prolinamide is an effective catalyst for α-selenenylation reactions of aldehydes, whereas

A simple and efficient L-prolinamide-catalyzed α-selenenylation reaction of aldehydes

An efficient and simple L-prolinamide-catalyzed α-selenenylation reaction of aldehydes with N-(phenylseleno)phthalimide has been developed for the efficient preparation of a-phenylselenoaldehydes. Such compounds are versatile building blocks for the synth

Use of phenylselenium trichloride for simple and rapid preparation of α-phenylselanyl aldehydes and ketones

α-Phenylselanyl aldehydes are prepared on a large scale by reaction of PhSeCl3 with the corresponding aldehydes in acetonitrile without isolation of the intermediate dichloro adducts. This method has been applied to α-phenylselanyl ketones deri

Synthesis of (-)-periplanone-B, a sex pheromone component of the American cockroach (Periplaneta americana)

The naturally occurring (-)-enantiomer of periplanone-B was synthesized stereoselectively starting from (S)-3-cyclohexene-1-carboxylic acid. The crystalline pheromone was obtained in 12% overall yield through 18 steps.