Intramolecular diels-alder reaction of iminothiol esters
作者:Yoshinao Tamaru、Osamu Ishige、Shin-ichi Kawamura、Zen-ichi Yoshida
DOI:10.1016/s0040-4039(01)91081-0
日期:1984.1
Diels-Alderreaction of dienyl α-methacrylthioimidates has been investigated under thermal or Lewis acid or protonic acid catalysed conditions. The utility of the reaction is shown by desulfurative ring contraction of bicyclo[4.4.0] to bicyclo[4.3.0]system.
Synthesis of steroid precursors. Intramolecular Diels-Alder approach to the trans-hydrindenone system.
作者:Swati A. Bal、Paul Helquist
DOI:10.1016/s0040-4039(01)82030-x
日期:1981.1
The intramolecular Diels-Alder reaction of the 1,3-propanediol-derived ketal of (6E)-2-methyl-1,6,8-nonatrien-3-one produces an approximately 3:1 ratio of trans- and cis-hydrindenones.