A Formal [3,3]-Sigmatropic Rearrangement Route to Quaternary α-Vinyl Amino Acids: Use of Allylic <i>N</i>-PMP Trifluoroacetimidates
作者:David B. Berkowitz、Bin Wu、Huijie Li
DOI:10.1021/ol060019s
日期:2006.3.2
Pd(II)-mediated rearrangement of allylic N-PMP (p-methoxyphenyl) trifluoroacetimidates provides the first formal sigmatropic route to quaternary, alpha-vinylic amino acids, potential suicide substrates for PLP enzymes. The amino acid side chains enter via transition-metal-mediated C-C bond constructions, including (i) Cu(I)-mediated conjugate addition (Ala); (ii) Pd(0)/AsPh3-mediated Stille coupling