ISSN:
0009-2940
Keywords:
Osmium complexes
;
1-Alkynols, reactions with
;
Carbenes, cyclic, five-membered
;
Vinyl ethers, metal-bound
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
(Benzene)osmium(II) Complexes with Cyclic Oxycarbenes and Vinyl Ethers as LigandsThe compounds [C6H6Os(PR3)]2] (5, 6) react with 1-alkynols HC≡CCH2CHR'OH in the presence of AgPF6 to give cyclic oxycarbene complexes (7-9) in almost quantitative yields. During the reaction vinylideneosmium intermediates are probably formed. Deprotonation of 7-9 with NaH affords the vinyl ether complexes (10 - 12). Reaction of 10 with methyl triflate (in the presence of NaH) leads to the formation of (13). The crystal and molecular structure of the oxycarbene complex 7 has been determined.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19911240521
Permalink
