The protocol of micro-flow nucleophilic pentafluoroethylation using pentafluoroethane (HC2F5, HFC-125), a nontoxic, inexpensive, and commercially available greenhouse gas, is described. The micro-flow pentafluoroethylation by HFC-125 proceeded smoothly at room temperature or at −10 °C in DMF or toluene in the presence of a potassium base, namely, t-BuOK or KHMDS. A broad range of ketones, aldehydes
Nucleophilic addition of the pentafluoroethyl group to aldehydes, ketones, and esters
作者:Paul G. Gassman、Neil J. O'Reilly
DOI:10.1021/jo00388a025
日期:1987.6
Nucleophilic Perfluoroalkylation of Imines and Carbonyls: Perfluoroalkyl Sulfones as Efficient Perfluoroalkyl-Transfer Motifs
作者:G. K. Surya Prakash、Ying Wang、Ryo Mogi、Jinbo Hu、Thomas Mathew、George A. Olah
DOI:10.1021/ol100918d
日期:2010.7.2
Alkoxide-induced nucleophilic pentafluoroethylation and trifluoromethylation of aldehydes, ketones, and imines using pentafluoroethyl phenyl sulfone (PhSO(2)CF(2)CF(3), 1) and trifluoromethyl phenyl sulfone (PhSO(2)CF(3), 2), respectively, have been successfully achieved. High diastereoselectivity was observed during the perfluoroalkylation of homochiral sulfinimines to give the corresponding perfluoroalkyl sulfinamides.
GASSMAN, P. G.;OREILLY, N. J., TETRAHEDRON LETT., 1985, 26, N 43, 5243-5246
作者:GASSMAN, P. G.、OREILLY, N. J.
DOI:——
日期:——
GASSMAN P. G.; OREILLY N. J., J. ORG. CHEM., 52,(1987) N 12, 2481-2490