REACTIONS OF COMPLEX LIGANDS .65. VINYLIDENE AND METHOXY(ALKYNYL)CARBENE MOLYBDENUM COMPLEXES - COMPETITIVE FORMATION DURING FISCHER CARBENE COMPLEX SYNTHESIS AND CRYSTAL-STRUCTURE DETERMINATION

Authors
DOTZ KH CHRISTOFFERS C CHRISTOFFERS J BOTTCHER D NIEGER M KOTILA S
Citation
Kh. Dotz et al., REACTIONS OF COMPLEX LIGANDS .65. VINYLIDENE AND METHOXY(ALKYNYL)CARBENE MOLYBDENUM COMPLEXES - COMPETITIVE FORMATION DURING FISCHER CARBENE COMPLEX SYNTHESIS AND CRYSTAL-STRUCTURE DETERMINATION, Chemische Berichte, 128(6), 1995, pp. 645-648
Citations number
48
Categorie Soggetti
Chemistry
Journal title
Chemische Berichte → ACNP
ISSN journal
00092940
Volume
128
Issue
6
Year of publication
1995
Pages
645 - 648
Database
ISI
SICI code
0009-2940(1995)128:6<645:ROCL.V>2.0.ZU;2-4
Abstract
Reaction of [(eta(5)-C5H5)(CO)(2)(NO)Mo] (1) with alkynyllithium and [ (CH3)(3)O]BF4 affords the vinylidene-molybdenum complex 2 along with t he methoxy(alkynyl)carbene molybdenum complex 3. Both compounds are ch aracterized by an X-ray crystal structure analysis. Due to axial and c entral chirality in the L(n)M=C=CR(2) moiety complex 2 is formed as a 2:1 mixture of two diastereomers. The formation of 2 and 3 can be unde rstood in terms of a competitive attack of alkynyllithium at the carbo nyl ligand and the molybdenum center.