Diethyl (N-Methoxy-N-methylcarbamoylmethyl)phosphonate - A Useful Emmons-Horner Wittig Reagent
作者:David F. Netz、Jimmy L. Seidel
DOI:10.1016/0040-4039(92)88112-i
日期:1992.4
Diethyl (N-methoxy-N-methylcarbamoylmethyl)phosphonate (1) is easily prepared by heating 2-chloro-N-methoxy-N-methylethanamide and triethylphosphite. Reagent 1 is useful for converting aldehydes and ketones into compounds containing an alpha,beta-unsaturated N-methoxy-N-methylamide group with high E selectivity.
A new synthesis of α,β-unsaturated N-methoxy-N-methylamides
phenyl(N-methoxy-N-methylcarbamoylmethyl)sulfoxide 1 is prepared in 2 steps starting from N-methoxy-N-methylchloroacetamide and thiophenol. Reagent 1 is useful for homologation of alkyl halides to alpha,beta-unsaturated N-methoxy-N-methylamide compounds. (C) 1998 Elsevier Science Ltd. All rights reserved.
NUZILLARD, JEAN-MARC;BOUMENDJEL, AHCENE;MASSIOT, GEORGES, TETRAHEDRON LETT., 30,(1989) N9, C. 3779-3780
作者:NUZILLARD, JEAN-MARC、BOUMENDJEL, AHCENE、MASSIOT, GEORGES