Studies of vitamin D (calciferol) and its analogs. 30. Thermal [1,7]-sigmatropic hydrogen shifts: stereochemistry, kinetics, isotope effects and .pi.-facial selectivity
Studies of vitamin D (calciferol) and its analogs. 30. Thermal [1,7]-sigmatropic hydrogen shifts: stereochemistry, kinetics, isotope effects and .pi.-facial selectivity