A radical-based synthesis of (Z,Z)-tricyclohexaprenol
作者:Denis Heissler、Thierry Jenn、Hajime Nagano
DOI:10.1016/0040-4039(91)80541-d
日期:1991.12
Addition of the isocopal-12-en-15-yl radical to a methyl 3-hydroxy-3-methylene alkenoate and stereoselective elimination of methanesulphonic acid from the mesylated adducts are the key steps of this synthesis of (Z,Z)-tricyclohexaprenol.
Synthesis of tricyclopolyprenols via a radical addition and a stereoselective elimination. Part II: (Z)-tricyclopentaprenol, (E,E)- and (Z,Z)-tricyclohexaprenol, (Z,Z,Z)-tricycloheptaprenol
作者:Thierry Jenn、Denis Heissler
DOI:10.1016/s0040-4020(97)10260-5
日期:1998.1
Four tricyclopolyprenols have been synthesised by addition of the isocopalenyl radical either to a 2-methylene-3-hydroxy alkenenitrile (in the case of (E,E)-tricyclohexaprenol) or to a methyl 2-methylene-3-hydroxy alkenoate (in the case of the three (Z)-tricyclopolyprenols). Elaboration of the newly introduced side chains includes a stereoselective elimination reaction and the reduction of the electron