Synthesis of C-glycosyl amino acids: scope and limitations of the tandem Tebbe/Claisen approach
作者:David J. Chambers、Graham R. Evans、Antony J. Fairbanks
DOI:10.1016/j.tetasy.2004.11.035
日期:2005.1
as substrates for the tandem Tebbe/Claisenapproach to the synthesis of C-glycosyl amino acids. Whilst esters of substituted α-amino acids do not successfully undergo Tebbe, or other, methylenation, esters of β- or γ-amino acids are methylenated to yield vinyl ethers, which then undergo smooth thermal rearrangement to yield β-C-glycoside products. tert-Butyl esters are found to be unreactive to the