REACTIVITY OF CARBANIONS OF FISCHER-TYPE CARBENE COMPLEXES WITH PYRYLIUM-SALTS - SYNTHESIS OF NEW GAMMA-METHYLENEPYRAN CARBENE COMPLEXES VIA AN ADDITION-OXIDATION DEPROTONATION PROCESS

Authors
CARO B LEPOUL P ROBINLEGUEN F SENECHALTOCQUER MC VAISSERMAN J
Citation
B. Caro et al., REACTIVITY OF CARBANIONS OF FISCHER-TYPE CARBENE COMPLEXES WITH PYRYLIUM-SALTS - SYNTHESIS OF NEW GAMMA-METHYLENEPYRAN CARBENE COMPLEXES VIA AN ADDITION-OXIDATION DEPROTONATION PROCESS, Tetrahedron letters, 39(7), 1998, pp. 557-560
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
39
Issue
7
Year of publication
1998
Pages
557 - 560
Database
ISI
SICI code
0040-4039(1998)39:7<557:ROCOFC>2.0.ZU;2-H
Abstract
The condensation reaction between gamma-unsubstituted pyrylium salts a nd carbanions of Fischer-type carbene complexes allowed the synthesis of new gamma-methylenepyran carbene complexes. C-13 NMR data and singl e cristal X-ray analysis suggest a delocalisation of the oxygene lone pair of the heterocycle. (C) 1998 Published by Elsevier Science Ltd. A ll rights reserved.