GENET, J. -P.;JUGE, S.;ACHI, S.;MONTES, J. RUIZ;LEVIT, G., TETRAHEDRON, 44,(1988) N 17, C. 5263-5275
作者:GENET, J. -P.、JUGE, S.、ACHI, S.、MONTES, J. RUIZ、LEVIT, G.
DOI:——
日期:——
Synthesis of α-amino acids using transition metal catalysis - alkylation of schiff bases derived from α-amimo acid esters (regio, stereo - selectivity)
the synthesis of γ,δ-unsaturated α-amino acid esters is described. Schiff bases derived from glycine and alanine esters were alkylated in the presence of palladium or molybdenumcatalysts under neutral or basic conditions using allylic carbonates, esters or halides, (20–95% yield). These less stabilized nucleophiles reacted with the η3 allyl species on the side opposite to the palladium and they can