trans-isomer, while cis-and α-products are formed in lower yields. In some cases the stannyl alkenols can be further hydrostannated to give distannyl alkanols. 13C and 119Sn NMR data for the organotin compounds are presented and discussed.
1-炔醇的氢化锡锡以良好的产率导致形成相应的三有机锡烷基烯醇。主要产物是反式异构体,而顺式和α型产物的产率较低。在某些情况下,可以进一步氢化锡烷基醇,以得到二锡烷基醇。给出并讨论了有机锡化合物的13 C和119 Sn NMR数据。
Regioselective addition of trimethylstannylcopper–dimethyl sulphide to 1-alkynes: synthesis of ω-substituted 2-(trimethylstannyl)-1-alkenes
作者:Edward Piers、J. Michael Chong
DOI:10.1039/c39830000934
日期:——
Treatment of ω-substituted1-alkynes (2) with 2 equiv. of trimethylstannylcopper–dimethylsulphide (1) in tetrahydrofuran (–63 ° C)in the presence of 60 equiv. of methanol affords good to excellent yields of the corresponding 2-(trimethylstannyl)-1-alkenes (3).