Preparation of organosilicon derivatives of cobalt-complexed but-2-yne-1,4-diol. X-Ray crystal structure of [Co<sub>2</sub>(CO)<sub>5</sub>(PPh<sub>3</sub>){µ-C<sub>2</sub>(CH<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(SiPh<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(CH<sub>2</sub>)<sub>2</sub>C<sub>2</sub>}Co<sub>2</sub>(CO)<sub>2</sub>(PPh<sub>3</sub>)]
作者:R. Harry Cragg、John C. Jeffery、Michael J. Went
DOI:10.1039/c39900000993
日期:——
Reactions of [Co2(µ-HOCH2C2CH2OH)(CO)6] with diorganodichlorosilanes in the presence of triethylamine afford hexacarbonyldicobalt-complexed 1,3-dioxa-2-silacycloalkynes.
Preparation of Hexacarbonyldicobalt-Complexed 1,3-Dioxa-2-silacycloheptynes
作者:Michael A. Brook、Jörg Urschey、Mark Stradiotto
DOI:10.1021/om980589z
日期:1998.11.1
The reaction between 2-butyne-1,4-diol-hexacarbonyldicobalt and a series of dichlorodialkylsilanes (R = Me, Et, CH=CH2, and Ph) in the presence of triethylamine results in the formation of the corresponding cobalt-complexed 1,3-dioxa-2-silacycloheptynes, 3-7, as the major products. Complexed silacyclononynes, 8 and 9, and a spirocyclic analogue 10, have also been prepared and characterized. The solid-state structures of 3 and 10 have been determined by X-ray diffraction studies.