α,α-Difluoro-β-iminophosphonates, an alternative strategy towards the synthesis of α,α-difluoro-β-aminophosphonate derivatives
作者:M. Z. Szewczyk、M. Rapp、D. Virieux、J.-L. Pirat、H. Koroniak
DOI:10.1039/c7nj00997f
日期:——
enzyme inhibitors. Herein, we report an alternative strategy towards the synthesis of α,α-difluoromethylene-β-aminophosphonate derivatives. A small library of N-substituted α,α-difluoro-β-aminophosphonates was designed and described via NMR study. The protocol began with the condensation of β-ketophosphonates with a series of primary amines. The key step of the synthesis is an electrophilic fluorination
An Efficient and Highly Selective
Synthesis of (<i>Z</i>)-Fluoroenol Phosphates
from Hydroxy Difluorophosphonates
作者:Petr Beier、Radek Pohl、Anastasia Alexandrova
DOI:10.1055/s-0028-1087803
日期:——
Substituted 2-aryl-2-hydroxy-1,1-difluorophosphonates undergo a reaction with potassium tert-butoxide to provide selectively (Z)-2-fluoro-1-arylvinyl phosphates in high yields. phosphonates - phosphates -rearrangements- eliminations - enols
Reformatsky-type Co-mediated synthesis of β-hydroxyphosphonates
作者:Fulvia Orsini
DOI:10.1016/s0040-4039(97)10819-x
日期:1998.3
Low-valent cobalt complexes were used in Reformatsky-type additions of alpha-halophosphonates to carbonyl compounds (ketones and aldehydes) to yield a variety of beta-hydroxyphosphonates. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
(Diethylphosphinyl)difluoromethyllithium. — Preparation and synthetic application —