HFO‐1234yf as a CF
<sub>3</sub>
‐Building Block: Synthesis and Chemistry of CF
<sub>3</sub>
‐Ynones
作者:Ben J. Murray、Thomas G. F. Marsh、Dmitri S. Yufit、Mark A. Fox、Antal Harsanyi、Lee T. Boulton、Graham Sandford
DOI:10.1002/ejoc.202001071
日期:2020.10.22
diisopropylamide (LDA) leads to formation of lithium 3,3,3‐trifluoropropynide, addition of which to a range of aldehydes formed CF3‐alkynyl alcohol derivatives on multigram scale, which were oxidised using Dess‐Martin periodinane (DMP) to give substituted CF3‐ynones with minimal purification required. Michael‐type additions of alcohol and amine nucleophiles to CF3‐ynones are rapid and selective, affording
Hydrofluorocarbon 245fa: a versatile new synthon in alkyne chemistry
作者:Alan K. Brisdon、Ian R. Crossley
DOI:10.1039/b207979h
日期:2002.10.11
The CFC replacement 1,1,1,3,3-pentafluoropropane (HFC 245 fa) has been established as a convenient source of trifluoropropynyllithium under mild conditions; a range of novel and known trifluoropropynyl-containing systems has been prepared in a one-pot procedure.