Polylithiumorganic compounds - 20.
作者:Adalbert Maercker、Ulrich Girreser
DOI:10.1016/s0040-4020(01)85287-x
日期:1994.1
The reaction of various cyclic and acyclic alkynes with lithium dust (2% sodium) to form vicinal dilithioalkenes has been investigated: Aliphatic alkynes, e.g. 3-hexyne (27a), exclusively afford the corresponding (E)-dilithioalkenes, insoluble solids which are stable at room temperature and allow access to a variety of tetrasubstituted olefins in acceptable yields
已经研究了各种环状和无环炔烃与锂粉(2%钠)形成邻位二硫代烯烃的反应:脂肪族炔烃,例如3-己炔(27a),专门提供了相应的(E)-二硫代烯烃,这些不溶性固体稳定在室温下,以可接受的收率获得各种四取代的烯烃