对映体纯的2,5,6a-三取代的全氢呋喃[2,3- b ]呋喃是通过双链烯基酮的环化反应得到的,呋喃是由在水和乙腈的混合物中用过硫酸铵氧化樟脑二硒化物而产生的樟脑硒烯基硫酸盐促进的。在室温下。环化反应通过两个双键的双selenohydroxylation进行,并且所产生的非对映异构2的混合物反式-和顺-2,5-双[(camphorseleno)甲基] perhydrofuro [2,3- b ]呋喃。将它们通过中压液相色谱分离,然后用氢化三苯锡和AIBN去硒烯基化。
Photosensitized one-electron reductive cleavage of a carbon–selenium bond: a novel chemoselective deselenenylation and phenylselenenyl group transfer radical chain reaction
作者:Ganesh Pandey、K. S. Sesha Poleswara Rao、B. B. V. Soma Sekhar
DOI:10.1039/c39930001636
日期:——
A novel photosensitized one-electron reduction of organoselenium compounds leading to chemoselective deselenenylation and phenylselenyl group transfer radical chain processes is reported.
In situ generation and utilization of electrophilic selenium species (PhSe+) by photooxidative (single electron transfer) cleavage of diphenyl diselenide (PhSeSePh)