The reaction of dialkylcopper lithium reagents with 3-halo-2-acylaminoacrylic acids
作者:Kim D. Richards、Aldean J. Kolar、Ananthachari Srinivasan、Robert W. Stephenson、Richard K. Olsen
DOI:10.1021/jo00885a004
日期:1976.11
RICHARDS K. D.; KOLAR A. J.; SRINIVASAN A.; STEPHENSON R. W.; OLSEN R. K., J. ORG. CHEM. <JOCE-AH>, 1976, 41, NO 23, 3674-3677
作者:RICHARDS K. D.、 KOLAR A. J.、 SRINIVASAN A.、 STEPHENSON R. W.、 OLSEN R. K.
DOI:——
日期:——
Highly Regio- and Enantioselective Catalytic Hydrogenation of Enamides in Conjugated Diene Systems: Synthesis and Application of γ,δ-Unsaturated Amino Acids
作者:Mark J. Burk、John G. Allen、William F. Kiesman
DOI:10.1021/ja9731074
日期:1998.2.1
efficient method has been found for the catalytic asymmetric hydrogenation of conjugated α,γ-dienamide esters using the Et-DuPHOS-Rh catalyst system. α,γ-Dienamide ester substrates were prepared via the Suzuki cross-coupling reaction and the Horner−Emmons olefination. Full conversion to the corresponding γ,δ-unsaturated amino acids with very high regio- and enantioselectivity was achieved after short reaction
A convenient cross-coupling route to α,β,γ,δ-unsaturated amino acids
作者:Mark J. Burk、John G. Allen、William F. Kiesman、Karen M. Stoffan
DOI:10.1016/s0040-4039(97)00065-8
日期:1997.2
β-Bromoenamide esters are coupled stereospecifically to vinylboronic acids via a palladium-catalyzed Suzuki reaction. This cross-coupling proceeds under mild conditions with Pd(OAc)2 in 95% EtOH at 50 °C and produces amino acids with 1,3-diene side chains in high yields.