Reactions of Tungsten Carbonyl Complexes Containing Diphenylvinylphosphine

Author

George S. Leotsakos, Eastern Illinois University

Degree Name

Master of Science (MS)

Semester of Degree Completion

1975

Thesis Director

Richard L. Keiter

Abstract

A new synthetic route for the production of the tungsten carbonyl complex (OC)₅WPPh₂CH₂CH₂PPh₂ has been discovered. It has been found that lithiumdiphenylphosphide reacts with diphenylvinylphosphinepentacarbonyltungsten(0) in tetrahydrofuran to produce upon hydrolysis a good yield of the pentacarbonyl product […]. No evidence for the formation of secondary products was noted nor was there evidence for preferential attack of the carbonyl group by LiPPh₂ to form a carbene complex.

Diphenylvinylphosphinepentacarbonyltungsten(0) (mp 62-64°C), was prepared for the first time by two different methods.

I. Displacement of aniline from anilinepentacarbonyltungsten(0) complex with diphenylvinylphosphine.

II. Displacement of THF from (OC)₅W(THF) complex with diphenylvinylphosphine.

Of the two methods the latter produced better yields and eliminated the need for the unstable aniline complex intermediate necessary in the former method.

Recommended Citation

Leotsakos, George S., "Reactions of Tungsten Carbonyl Complexes Containing Diphenylvinylphosphine" (1975). Masters Theses. 3495.
https://thekeep.eiu.edu/theses/3495