One-pot sequential cross-metathesis/hydride reduction: highly stereoselective synthesis of primary (E)-allylic alcohols from terminal olefins
作者:Tapas Paul、Gopal Sirasani、Rodrigo B. Andrade
DOI:10.1016/j.tetlet.2008.03.132
日期:2008.5
Several di- and trisubstituted primary (E)-allylic alcohols have been prepared from the corresponding terminal olefins in a highly stereoselective manner (>20:1 E/Z) by sequencing olefin cross-metathesis (CM) with hydride reduction (DIBAL-H) in good yields utilizing only commercially available reagents in a one-pot fashion. The method is a reliable alternative to the direct CM of terminal olefins with
通过以氢化物还原法对烯烃交叉复分解(CM)进行测序(DIBAL-H),从相应的末端烯烃以高度立体选择性的方式(> 20:1 E / Z)制备了几种二和三取代的伯(E)烯丙基醇。)仅使用一锅法仅使用市售试剂即可获得高收率)。该方法是端烯与烯丙醇直接CM的可靠替代方法,后者并不总是立体选择性的,而是高度依赖底物的。
A Concise Total Synthesis of (+)-Neopeltolide
作者:Haruhiko Fuwa、Asami Saito、Makoto Sasaki
DOI:10.1002/anie.201000624
日期:——
Short and sweet: The highly potent antiproliferative marine macrolide (+)‐neopeltolide has been synthesized based on the strategic application of olefin metathesis reactions. The totalsynthesis proceeded in only 13 steps from commercially available starting materials, and represents the shortest synthesis of (+)‐neopeltolide reported to date.