N-Methylation of carbamate derivatives of α-amino acids
作者:Christopher J. Easton、Katherine Kociuba、Steven C. Peters
DOI:10.1039/c39910001475
日期:——
Carbamate derivatives of α-aminoacids react by N-methylation, without racemization, on treatment with tert-butyl perbenzoate in the presence of copper(II) octanoate; the selective reaction of N-tert-butoxycarbonylglycine methyl ester, in preference to the corresponding alanine and valine derivatives, indicates that the relative reactivity of substrates is determined by the comparative ease of their
Reactions of a glycidyl radical equivalent with 2-functionalised allyl stannanes
作者:Jack E. Baldwin、Robert M. Adlington、Christopher Lowe、Ian A. O'Neil、Gillian L. Sanders、Christopher J. Schofield、Joseph B. Sweeney
DOI:10.1039/c39880001030
日期:——
Reaction of 2-bromo-N-benzoylglycine methyl ester with 2-functionalised allyl stannane reagents under radical conditions provides a new route to α-alkylated amino acids in good yield, as exemplified by the facile synthesis of 4-methylene glutamate.