Reactions of Ethynylferrocene and 3, 3, 3-Trifluoropropyne with (PPh3)2Ni(CO)2, Co2(CO)8, and trans-PPh3)2IrCl(CO).
Abstract
Ethynylferrocene oligomerized to linear dimer, linear trimer, and 1,2,4-triferrocenylbenzene in the presence of (PPh3)2Ni(CO)2 and its polymer-anchored analogs. The rate of oligomerization decreased as the crosslink density of the anchored catalysts increased but the product distribution remained the same as using the soluble catalyst. 3,3,3-Trifluoropropyne did not oligomerize at temperatures to 150C. Ethynylferrocene was converted to mu-ferrocenylacetylenehexacarbonyl-dicobalt, upon reaction with one equivalent of Co2(CO)8. Reaction of ethynylferrocene with trans-(PPh3)2IrCl(CO) gives the six coordinate Ir(III) hydridoacetylide. Trifluoropropyne underwent oxidative addition with trans--(PPh3)2IrCl(CO) to give six coordinate hydridoacetylide, but no polymer was formed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1975
- Accession Number
- ADA004948
Entities
People
- Charles U. Pittman Jr.
- Larry R. Smith
Organizations
- University of Alabama