2-PHOSPHAINDOLIZINES

Authors
GUPTA N JAIN CB HEINICKE J BHARATIYA N BANSAL RK JONES PG
Citation
N. Gupta et al., 2-PHOSPHAINDOLIZINES, Heteroatom chemistry, 9(3), 1998, pp. 333-339
Citations number
24
Categorie Soggetti
Chemistry
Journal title
Heteroatom chemistry → ACNP
ISSN journal
10427163
Volume
9
Issue
3
Year of publication
1998
Pages
333 - 339
Database
ISI
SICI code
1042-7163(1998)9:3<333:>2.0.ZU;2-P
Abstract
Eight new 2-phosphaindolizines 2 have been obtained by [4 + 1] cycloco ndensation of 1,2-dialkylpyridinium halides 1 with PCl3. The X-ray str ucture analysis of 2a is consistent with the integration of the 1,3-az aphosphole ring in the 10 pi-aromatic system. The charge densities on phosphorus Of various representatives as obtained by PM3 calculations col relate approximately with the P-31-NMR shifts. The mass spectral f ragmentation of 2a resembles that of its nonphosphorus analog. (C) 199 8 John Wiley & Sons, Inc.