Fragmentation of Trifluoromethylated Alkenes and Acetylenes by <i>N</i>,<i>N</i>-Binucleophiles. Synthesis of Imidazolines or Imidazolidines (Oxazolidines) Controlled by Substituent
作者:Valentine G. Nenajdenko、Vasiliy M. Muzalevskiy、Aleksey V. Shastin、Elizabeth S. Balenkova、Evgeniy V. Kondrashov、Igor A. Ushakov、Alexander Yu. Rulev
DOI:10.1021/jo101107t
日期:2010.8.20
The reaction of β-halogeno-β-polyfluoromethylstyrenes with N,N- or N,O-binucleophiles leads to unexpected fragmentation products (imidazolines) or to heterocyclization giving CF3-substituted imidazolidines (N,N-) and oxazolidines (N,O-) depending on aryl substituent. The scope and the reaction mechanism are discussed.