Exploring the Reactivity of B-Connected Carboranylphosphines in Frustrated Lewis Pair Chemistry: A New Frame for a Classic System.

ABSTRACT: The primary phosphines MesPH₂ and tBuPH₂ react with 9-iodo-m-carborane yielding B9-connected secondary carboranylphosphines 1,7-H₂ C₂ B₁₀ H₉ -9-PHR (R=2,4,6-Me₃ C₆ H₂ (Mes; 1 a), tBu (1 b)). Addition of tris(pentafluorophenyl)borane (BCF) to 1 a, b resulted in the zwitterionic compounds 1,7-H₂ C₂ B₁₀ H₉ -9-PHR(p-C₆ F₄ )BF(C₆ F₅ )₂ (2 a, b) through nucleophilic para substitution of a C₆ F₅ ring followed by fluoride transfer to boron. Further reaction with Me₂ SiHCl prompted a H-F exchange yielding the zwitterionic compounds 1,7-H₂ C₂ B₁₀

SUBMITTER: Schulz J 

PROVIDER: S-EPMC9320892 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature