The preparation and alkylation of a butanedione-derived chiral glycine equivalent and its use for the synthesis of α-amino acids and α,α-disubstituted amino acids
作者:Christopher I. Harding、Darren J. Dixon、Steven V. Ley
DOI:10.1016/j.tet.2004.06.063
日期:2004.8
benzyloxycarbonyl protected glycine equivalent 2 has been prepared in enantiopure form and has been used in the synthesis of both α-substituted amino acids and α,α-disubstituted amino acids. The process involved deprotonation to form the corresponding enolates which underwent stereoselectivealkylation with various electrophiles and upon hydrolysis gave the corresponding amino acidderivatives as enantiomerically