alkyl trifluoro(organylsulfonylimino)propionates with phosphites occurs with NC transfer of the RSO2 group and leads to sulfonyl-substituted trifluoroalanine derivatives. The novel rearrangement is interpreted as cheletropic 1,4-cycloaddition of the phosphite and subsequent 1,2-shift of the sulfonyl group in the intermediate cyclic phosphorane.
三
氟(有机基磺酰
氨基)
丙酸烷基酯与
亚磷酸酯的反应是通过RSO 2基团的NC转移而发生的,并导致磺酰基取代的三
氟丙
氨酸衍
生物。新颖的重排被解释为
亚磷酸酯的1,4-
环己烯基加成以及随后在中间环状
磷烷中磺酰基的1,2-转移。