Insertion of electrophilic phosphorus into cyclopropanes; a new synthesis of phosphatanes
作者:Steven A. Weissman、S.G. Baxter
DOI:10.1016/s0040-4039(00)80260-9
日期:1988.1
Electrophilic phosphorus reagents such as [(Cl)(i-Pr2N)P]+ [AlCl4]− and PhPCl2/AlCl3 are found to insert into monocyclic cyclopropanes to yield phosphetanes. The utility of this new method is demonstrated by synthesizing the first phosphetanes bearing phenyl substituents at carbon.
Further ring openings and ring expansions of phosphetans
作者:J. R. Corfield、M. J. P. Harger、J. R. Shutt、S. Trippett
DOI:10.1039/j39700001855
日期:——
4-hexamethyl-1-phenylphosphetanium iodide led to ring opening via pentacovalentintermediates as also did the action of cyanide ion on this salt. Ring expansions of 2,2,3-trimethyl- and 2,2,3,3-tetramethyl-1-phenylphosphetan on reaction with ethyl propiolate in wet ether, on reaction with dimethyl acetylenedicarboxylate, and on hydrolysis of the iodomethylphosphetanium salts, occur with migration of the
The stereochemistry of the alkaline hydrolysis of phosphetanium salts. Change in configuration at phosphorus on ylide formation
作者:J. R. Corfield、J. R. Shutt、S. Trippett
DOI:10.1039/c29690000789
日期:——
Partial inversions of configuration at phosphorus occur both on ylide formation from, and alkalinehydrolysis of, the benzylphosphetanium salts (VII) and (IX).