SYNTHESIS OF DENSELY FUNCTIONALIZED N-HYDROXYPYRROLES MEDIATED BY VINYLTRIPHENYL PHOSPHONIUM SALT

Authors
YAVARI I RAMAZANI A YAHYAZADEH A
Citation
I. Yavari et al., SYNTHESIS OF DENSELY FUNCTIONALIZED N-HYDROXYPYRROLES MEDIATED BY VINYLTRIPHENYL PHOSPHONIUM SALT, Synthetic communications, 26(23), 1996, pp. 4495-4499
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Synthetic communications → ACNP
ISSN journal
00397911
Volume
26
Issue
23
Year of publication
1996
Pages
4495 - 4499
Database
ISI
SICI code
0039-7911(1996)26:23<4495:SODFNM>2.0.ZU;2-X
Abstract
Protonation of the reactive 1:1 intermediates produced in the reaction between triphenylphosphine and dialkyl acetylenedicarboxlates by buta ne-2,3-dione monoxime leads to vinyltriphenylphosphonium salts, which undergo intramolecular Wittig reaction to produce dialkyl 2,3-dimethyl -N-hydroxypyrrole-4,5-dicarboxylates in fairly high yields.