作者:W. Russell Bowman、David S. Brown、Catherine A. Burns、Brian A. Marples、Naveed A. Zaidi
DOI:10.1016/s0040-4020(01)89879-3
日期:1992.1
Tributyltin hydride reduction of 2-bromo- and 2-keto-bicyclo[2.2.1]heptan-3-spiro-2′-oxiranes gives ring opening of the oxirane-rings via intermediate 3-(spiro-2′-oxiranyl)bicyclo[2.2.1]heptan-2-yl radicals, whereas reduction of the analogous 2-(thiocarbonyl)imidazolides) [2-(O-CS-Im)] unusually yields the 2-methoxy derivatives and does not proceed by the expected normal fragmentation to yield 3-(
氢化三丁基锡还原2-溴和2-酮-双环[2.2.1]庚-3-螺-2'-氧杂环戊烷,通过中间体3-(螺-2'-环氧乙烷基)双环使环氧乙烷环开环[2.2.1]庚-2-基团,而类似的2-(硫代羰基)咪唑啉化物)[2-(O-CS-Im)]的还原反应异常地产生2-甲氧基衍生物,并且不会按照预期的正常方式进行断裂产生3-(螺-2'-环氧乙烷基)双环[2.2.1]庚-2-基,随后环氧乙烷环开环。