have demonstrated the use of the room temperature ionicliquid, 1-butyl-3-methylimidazoliumhexafluorophosphate ([bmim]PF 6 ), as an environmentally benign solvent for the preparation of 2-benzenesulfonyl-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid ethyl ester derivatives through Pictet-Spengler reaction using phenyliodine(III) bis(trifluoroacetate) (PIFA) under mild conditions.
A Novel Cyclization of Electron Deficient N-Benzenesulfonyl-b-phenethylamines Using Ethyl Chloro(methylthio)acetate. Synthesis of Ethyl 1,2,3,4-Tetrahydroisoquinoline-1-carboxylates
作者:Yasuo Sekine、Harumichi Kohno
DOI:10.3987/com-95-s47
日期:——
BELLETIRE, J. L.;FRY, D. F., SYNTH. COMMUN., 18,(1988) N 1, 29-35
作者:BELLETIRE, J. L.、FRY, D. F.
DOI:——
日期:——
Belletire, J. L.; Fry, D. F., Synthetic Communications, 1988, vol. 18, # 1, p. 29 - 36