Bausch Cory C, Johnson Jeffrey S
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA.
J Org Chem. 2008 Feb 15;73(4):1575-7. doi: 10.1021/jo701778k. Epub 2008 Jan 23.
The conjugate addition of dialkylzinc reagents to allyl fumarates with subsequent Ireland-Claisen rearrangement has been accomplished yielding substituted unsymmetrical succinic acid derivatives. This one-pot reaction creates two new carbon-carbon bonds at contiguous stereogenic centers. The reaction proceeds for several alkylzinc reagents and substituted allyl fumarates. The products contain distinguishable functional handles for further manipulation.
二烷基锌试剂与富马酸烯丙酯进行共轭加成,随后进行爱尔兰-克莱森重排,得到了取代的不对称琥珀酸衍生物。这种一锅法反应在相邻的手性中心形成了两个新的碳-碳键。该反应适用于多种烷基锌试剂和取代的富马酸烯丙酯。产物含有可区分的官能团,便于进一步操作。