Secondary deuterium kinetic isotope effects associated with multiple deuteriation of trimethylammonium leaving groups in some E1 and E2 reactions
Abstract
Large normal (kH/kD > 1) secondary deuterium kinetic isotope effects have been observed in E1 and E2 reactions of some steroidal axial trimethylammonium salts when the leaving groups were partly or fully deuteriated; analogous but much smaller effects have been observed in E2 reactions of 2-phenylethyltrimethyl-ammonium salts.