COATES R. M.; ROGERS B. D.; HOBBS S. J.; PECK D. R.; CURRAN D. P., J. AMER. CHEM. SOC., 109,(1987) N 4, 1160-1170
作者:COATES R. M.、 ROGERS B. D.、 HOBBS S. J.、 PECK D. R.、 CURRAN D. P.
DOI:——
日期:——
Enantioselective Synthesis of Cyclic, Quaternary Oxonitriles
作者:Yakup Güneş、M. Fatih Polat、Ertan Sahin、Fraser F. Fleming、Ramazan Altundas
DOI:10.1021/jo1011202
日期:2010.11.5
Quaternaryoxonitriles are stereoselectively generated from the union of five-, six-, and seven-membered 2-chloroalkenecarbonitriles with chiral alcohols via a Claisen rearrangement. The strategy rests on a new conjugate addition−elimination of allylic alkoxides to 2-chlorocycloalkenecarbonitriles to afford substituted 2-alkoxyalkenenitriles. Subsequent thermolysis unmasks a cyclicoxonitrile while