作者:Charles S. Elmore、Peter N. Dorff
DOI:10.1002/jlcr.1808
日期:2011.1
Silylacetylenes are useful coupling partners for aromatic halides in the Sonogashira reaction and a C-14 labeled version of this useful synthon would allow ready access to a wide variety of arylalkynes. Ca14C2 was converted to triphenylsilyl[14C2]acetylene using two related routes in 65% yield, and the resulting [14C2]acetylene was coupled with an aryl halide to give the target triphenylsilylarylacetylene (2) in 40% yield. Copyright © 2010 John Wiley & Sons, Ltd.
炔基硅烷是Sonogashira反应中芳基卤化物的有用偶联伙伴,而这种有用砌块的C-14标记版本将便于合成多种多样的芳基炔。将Ca14C2转化成三苯基硅烷基[14C2]乙炔,经两条相关路线,产率均达65%,生成的[14C2]乙炔与芳基卤化物偶联后得到目标三苯基硅烷基芳基乙炔(化合物2),产率为40%。版权所有©2010 John Wiley & Sons, Ltd.