Substitution and Addition Reactions of a (Methylene)phosphine with Alkyllithium Reagents.
Abstract
Treatment of the (methylene)phosphine (Me3Si)2NP=CHSiMe3 (1) with alkyllithium reagents and Me3SiCl affords either the diphosphinomethane derivative R2P-CH(SiMe3)-P(R)CH(SiMe3)2 (2, R = Me) or the trialkylphosphine R2PCH(SiMe3)2 (3, R = t-Bu). A reaction pathway involving both nucleophilic substitution and addition reactions at the P=C moiety is suggested. Compound 2 exhibits hindered rotation about the P-CH(SiMe3)2 bond with a measured delta G+ sub c of 17.7 kcal/mole. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 18, 1984
- Accession Number
- ADA141512
Entities
People
- B. L. Li
- R. H. Neilson
Organizations
- Texas Christian University