Optically active (E)-N-tosyl-S-(1-alkenyl)-S-phenylsulfoximines 4 are synthesized stereoselectively in a one pot sequence from readily available 1 via C-silylation, metallation and reaction of the corresponding lithiosulfoximine 3 with various carbonyl compounds. The El-MS spectra of the so prepared alkenylsulfoximines 4 show unexpected fragmentations, pointing to a new, unusual S-O-migration of the
旋光性(E)-N-
甲苯磺酰基-S-(1-链
烯基)-S-
苯基亚磺
酰亚胺亚胺4通过C-
硅烷化,
金属化和相应的
硫代
亚砜亚胺3与各种羰基的反应,从一个容易获得的1立体立体合成一锅顺序合成。化合物。如此制备的
烯基
亚砜肟基4的El-MS光谱显示出意想不到的断裂,表明1-
烯基部分的新的,不寻常的SO-迁移。