Vicarious Nucleophilic Substitution of Hydrogen in Nitroarenes using 1-Chloroalkanesulfonic Esters; A Simple Synthesis of 1-(Nitrophenyl)-alkanesulfonic and (Nitrophenyl)-methanesulfonic Esters
Vicarious Nucleophilic Substitution of Hydrogen in Nitroarenes using 1-Chloroalkanesulfonic Esters; A Simple Synthesis of 1-(Nitrophenyl)-alkanesulfonic and (Nitrophenyl)-methanesulfonic Esters
Tandem Vicarious Nucleophilic Substitution of Hydrogen/Intramolecular Diels- Alder Reaction of 1,2,4-Triazines into Functionalized Cycloalkenopyridines.
8-tetrahydroquinolines and 5,6,7,8-tetrahydroisoquinolines from 1,2,4-triazine derivatives is reported. Introduction of an alpha-functionalized methyl substituent (e.g. arylsulphonyl, sulphonamide, sulphonic acid ester) into position 3- or 6- of triazines by vicarious nucleophilic substitution of hydrogen and subsequent alkylation with alkyl iodides bearing an acetylenic function in terminal position afforded valuable
The Products of Vicarious Nucleophilic Substitution and Annelation in the Reactions of α-Haloalkyl Carbanions with Benzonaphthyridines and their N-Oxides
作者:Barbara Bachowska
DOI:10.1007/s007060200076
日期:2002.8.1
Carbanions of chloromethyl 4-tolylsulfone, bromo- and chloromethanesulfomorpholide, and neopentyl chloromethanesulfonate react with benzonaphthyridines and their N-oxides via two pathways: vicarious nucleophilic substitution of hydrogen and annelation. The results are rationalized in terms of the negative charge delocalization in the intermediate σ-adducts.
New synthesis of substituted indole derivatives via vicariousnucleophilic substitution of hydrogen
作者:K. Wojciechowski、M. Mąkosza
DOI:10.1016/s0040-4039(01)81521-5
日期:——
Carbanions bearing leaving groups react with m-nitrophenyl isocyanides to form products of vicarious nucleophilic substitution of hydrogen which subsequently cyclize to corresponding indoles.