Formation and reactivity of a transient cationic alkyl phosphinidene complex

Rakesh A. Rajagopalan, Brian T. Sterenberg

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Reaction of the chloroisopropylphosphido complex [Cp*Mo(CO) 3{P(Cl)i-Pr}] (1) with AlCl3 generates the transient cationic alkylphosphinidene complex [Cp*Mo(CO)3 {P(i-Pr)}][AlCl4] (2). If it is generated in the presence of diphenylacetylene, 2 undergoes a (1 + 2) cycloaddition to form the phosphirene complex [Cp*Mo(CO)3{P(i-Pr)C(Ph)C- (Ph)}][AlCl4] (3). Reaction of 2 with PPh3 forms the phosphine- coordinated phosphinidene complex [Cp*Mo(CO)3{P(PPh3)(i-Pr)}] [AlCl4] (4). Compound 2 reacts with Ph2SiH2 to insert the phosphinidene phosphorus atom into the Si-H bond, forming the secondary silylphosphine complex [Cp*Mo(CO)3 {P(H)(SiHPh 2)(i-Pr)}][AlCl4] (5). Similarly, 2 reacts with ferrocene to activate a C-H bond, resulting in the formation of [Cp*Mo(CO) 3{P(H)(i-Pr)(C5H4FeC5H 5)}][AlCl4] (6).

Original languageEnglish
Pages (from-to)2933-2938
Number of pages6
Issue number11
Publication statusPublished - May 17 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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