Stereoselective Synthesis of Cyclobutanes by Contraction of Pyrrolidines
作者:Chunngai Hui、Lukas Brieger、Carsten Strohmann、Andrey P. Antonchick
DOI:10.1021/jacs.1c10175
日期:2021.11.17
contractive synthesis of multisubstituted cyclobutanes containing multiple stereocenters from readily accessible pyrrolidines using iodonitrene chemistry. Mediated by a nitrogen extrusion process, the stereospecific synthesis of cyclobutanes involves a radical pathway. Unprecedented unsymmetrical spirocyclobutanes were prepared successfully, and a concise, formal synthesis of the cytotoxic natural product
在这里,我们报告了使用碘氮烯化学从容易获得的吡咯烷中收缩合成含有多个立体中心的多取代环丁烷。在氮挤压过程的介导下,环丁烷的立体定向合成涉及自由基途径。成功制备了史无前例的不对称螺环丁烷,并报道了细胞毒性天然产物哌拉硼烯 B 的简明、正式合成。
Cremlyn, Richard J.; Frearson, Martin J.; Graham, Stephen, Phosphorus, Sulfur and Silicon and the Related Elements, 1995, vol. 107, # 1-4, p. 205 - 218
作者:Cremlyn, Richard J.、Frearson, Martin J.、Graham, Stephen
DOI:——
日期:——
Thieme,P., Chemische Berichte, 1968, vol. 101, p. 378 - 380