Absolute configuration and conformational disorder of a tricyclic thiosemicarbazone derivative
摘要:
The title compound, (1S, 3R, 8R)-2,2-dichloro-3,7,7,10-tetramethyltricyclo[ 6.4.0.0(1,3)] dodecan-11-one thiosemicarbazone, C17H25Cl2N3S, has two disordered conformations of the cycloheptane moiety and a screw-boat conformation for the cyclohexene ring. The absolute configuration was established.
作者:A. Chiaroni、C. Riche、A. Benharref、H. El Jamili、E. Lassaba
DOI:10.1107/s0108270194014125
日期:1995.6.15
The stereochemistry of the major isomer resulting from the epoxidation of alpha-trans-himachalene has been established. Hence, the configurations of the three resulting derivatives have been deduced. The seven-membered ring in the title compound, C15H24O2, is twist-chair shaped while the six-membered ring adopts a 1,2-diplanar conformation.
Regio and Stereoselective Epoxidation of<i>Cis</i>-and Trans-Himachalenes
As part of our program on valorisation of moroccan essential oils, we have synthesized, from cis- and trans-himachalenes extracted from cedrus Atlantica, mono and diepoxides in 2,3 and 7,13 or 7,8 position whose configurations were established.