Reactions of 2‐Amino‐1,3‐butadienes and Fischer Alkynyl Carbenes: Up to Nine C−C Bonds and Seven Stereogenic Centers Created in a Stereoselective Manner through a Cascade Process
SAUVETRE, R.;NORMANT, J. F., TETRAHEDRON LETT., 1982, 23, N 42, 4325-4328
作者:SAUVETRE, R.、NORMANT, J. F.
DOI:——
日期:——
Serial [5+2]/[4+2] Cycloadditions: Facile, Preparative, Multi‐Component Syntheses of Polycyclic Compounds from Simple, Readily Available Starting Materials
作者:Paul A. Wender、Gabriel G. Gamber、Marc J. C. Scanio
Four new bonds and up to four new stereocenters are formed in the title reactions which allow the conversion of readily available starting materials into complex bicyclo[5.4.0]undecane derivatives. The reactions are performed in a single, simple operation that can be conducted on a preparative scale (100 mmol thus far).
Une nouvelle preparation du fluoroacetylene - sa reaction avec les organometalliques. Synthese d'alcynes et d'enynes divers
作者:R. Sauvêtre、J.F. Normant
DOI:10.1016/s0040-4039(00)85591-4
日期:1982.1
FCCH has been prepared from 1,1-difluoroethylene at low temperature. Its reaction with various organometallics opens a way to acetylenes bearing tertiary alkyl-, vinyl-, aryl- or heteroaryl groups directly α to the unsaturation.