Synthèse de perfluoroalkyl indoles via la cycloaddition dipolaire-1,3
作者:Joel Fayn、Antoine Nezis、Aime Cambon
DOI:10.1016/s0022-1139(00)81989-2
日期:1987.9
An unusual synthesis of functionalized F-alkyl indoles using ethyl perfluoroalkynoates and C,N diphenyl nitrone is described. Two isomers, 2- F-alkyl (90%) and 3- F-alkyl (10%) are obtained with short perfluoro alkyl chains (CF3, nC3F7). Regiospecifity is obtained with longer chains (C5F11, C6F13, C7F15).
描述了使用全氟链烷酸乙酯和C,N二苯基硝酮不寻常地合成官能化的F-烷基吲哚的方法。获得具有短的全氟烷基链(CF 3,nC 3 F 7)的两种异构体,2-F-烷基(90%)和3-F-烷基(10%)。区域特异性是通过更长的链(C 5 F 11,C 6 F 13,C 7 F 15)获得的。
Synthese et reactivite des perfluoroalkyl-3 alkylthio-3 propenoates d'ethyle: thiophenes et β-thioxoesters perfluoroalkyles
作者:A. Chauvin、J. Greiner、R. Pastor、A. Cambon
DOI:10.1016/s0040-4020(01)87467-6
日期:1986.1
reactivity of the adducts reported. The mono-adducts Z and E formed by the action of thiols with 1 were unambiguously identified by 19F-NMR. In addition to the expected alkenes Z and E, the reaction of 1 with ethyl mercaptoacetate led to ethyl 2-F-alkyl-4-hydroxy-3-thiophenecarboxylate 7. The cyclisation of ethyl 3-F-alkyl-3-(methoxycarbonylmethylthio) propenoate Z in basic medium afforded methyl 5-F-alkyl-
Stereoselective synthesis of F-alkyl α,β-unsaturated esters and their epoxidation
作者:Marion Lanier、Mustapha Haddach、Raphael Pastor、Jean G. Riess
DOI:10.1016/s0040-4039(00)60443-4
日期:1993.4
Strong electrophilic Z and E 3-F-alkyl 2-propenoates have been prepared stereoselectively. Their extremely difficult epoxidation has been achieved with retention of stereohemistry using t-BuO2Li, leading to F-alkyl glycidic esters, which are useful building blocks for the synthesis of new amphiphiles.
Stabilite et reactivite anormales des perfluoroalkyl azirines et aziridines
作者:Mustapha Haddach、Raphaël Pastor、Jean G Riess
DOI:10.1016/s0040-4039(00)88896-6
日期:1990.1
The presence of an F-alkyl chain induces particular reactivity and stability in azirinic and aziridinic rings. The newly synthesized F-alkyl azirine carboxylates undergo addition reactions. The F-alkyl aziridine carboxylates are extremely stable towards both nucleophilic and electrophilic reactants, whether the medium be neutral, acidic or basic.
Synthese de nouveaux acides amines F-alkyles derives de la lysine. L'arginine et la cysteine
作者:M. Haddach、R. Pastor、J.G. Riess
DOI:10.1016/s0022-1139(00)80290-0
日期:1991.2
Ethyl-2-F-alcynoates are good substrates for Michael additions. Such additions allowed the preparation of three new families of F-alkylated aminoacids derived from lysine, arginine and cysteine. However, their transformation into betaines has proved more difficult than in the hydrocarbon series.