Chirality transfer from silicon to carbon via diastereoselective Simmons–Smith cyclopropanation of chiral alkenylsilanols
作者:Yuichi Yamamura、Fumihiko Toriyama、Tatsuhiro Kondo、Atsunori Mori
DOI:10.1016/s0957-4166(02)00056-3
日期:2002.2
Simmons–Smith cyclopropanation of a chiral alkenylsilanol with CH2I2–Et2Zn proceeds diastereoselectively to give the corresponding cyclopropylsilanol product. Chirality transfer from silicon to the alkenyl carbons of the silicon substituent is observed. The stereochemistry of the obtained cyclopropylsilanol is confirmed by converting to cyclopropanol via Tamao oxidation.
Simmons-Smith手性烯基硅烷醇与CH 2 I 2 -Et 2 Zn的环丙烷化非对映选择性,得到相应的环丙基硅烷醇产物。观察到从硅到硅取代基的烯基碳的手性转移。通过经由Tamao氧化转化为环丙醇,证实了所获得的环丙基硅烷醇的立体化学。