Methionine as Precursor for the Enantioselective Synthesis of α-Branched Vinylglycines and of Other Amino Acids
甲硫氨酸作为α-支链乙烯基甘氨酸和其他氨基酸的对映选择性合成的前体
Synthesis of (R)-α-benzylmethionine: a novel rearrangement during alkylation of the Seebach (R)-methionine oxazolidinone
作者:Panayiotis A. Procopiou、Mahmood Ahmed、Séverine Jeulin、Rossana Perciaccante
DOI:10.1039/b303471m
日期:——
Alkylation of the enolate of the Seebach (R)-methionine oxazolidinone with benzyl bromide gave the expected benzylated product in low yield. The major product was a novel amine arising from oxazolidinone cleavage, decarboxylation, alkylation and finally hydrolysis. The rearrangement could be suppressed by using a more reactive electrophile or by using the N-Cbz instead of the N-benzoyl protecting group