505094-47-3

Upstream product

• 81477-94-3 N-(diphenylmethylene)glycine tert-butyl ester 
• 585-71-7 (1-bromoethyl)benzne 
• 257298-93-4 4,4,5,5-tetramethyl-2-[(1S)-1-phenyethyl]-1,3,2-dioxaborolane 
• 257298-92-3 (R)-4,4,5,5-tetramethyl-2-(1-phenylethyl)-1,3,2-dioxaborolane 
• 196212-80-3 2-((S)-1-Phenyl-ethyl)-benzo[1,3,2]dioxaborole 
• 136962-67-9 (R)-1-phenylethyl-1,3,2-benzodioxaborole 
• 100-42-5 styrene 
• 176965-32-5 tert-butyl-acetyloxydiphenylmethyleneaminoacetate 
• 505094-36-0 9-((S)-1-Phenyl-ethyl)-9-bora-bicyclo[3.3.1]nonane 
• 505094-34-8 (R)-9-(1-phenylethyl)-9-borabicyclo[3.3.1]nonane 

Downstream Products

• 59850-51-0 threo-(+)-(2S,3R)-L-β-Methylphenylalanine hydrochloride 

Relevant academic research and scientific papers

Practical stereoselective synthesis of β-branched aα-amino acids through efficient kinetic resolution in the phase-transfer-catalyzed asymmetric alkylations

Phase-transfer-catalyzed alkylation of glycinate Schiff base with racemic secondary alkyl halides proceeded with excellent levels of syn- and enantioselectivities under the influence of chiral quaternary ammonium bromide 1d and 18-crown-6. The alkylation

Acyclic stereoselective boron alkylation reactions for the asymmetric synthesis of β-substituted α-amino acid derivatives

Optically active syn- or anti-β-substituted-α-amino acid derivatives are prepared in 94 to ≥99% ee and 66-98% ds by reaction of the Schiff base acetate of glycine tert-butyl ester with chiral, nonracemic B-alkyl-9-BBN derivatives in the presence of the Cinchona alkaloid, cinchonidine (CdOH) or cinchonine (CnOH), base, and lithium chloride. Copyright