Studies on vitamin D (calciferol) and its analogs. 18. The vinylallene approach to the 1-hydroxyvitamin D system. New sigmatropic reactions in the vitamin D series
Studies on vitamin D (calciferol) and its analogs. 29. Mechanistic studies by deuterium labeling and related kinetic investigations of the [1,5]-sigmatropic hydrogen shift of vitamin D type vinylallenes