Synthesis, structure, and reactions of a (η3-α- silabenzyl)molybdenum complex: A synthetic equivalent of a coordinatively unsaturated silyl complex

Takashi Komuro, Yuto Kanno, Hiromi Tobita

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The (η3-α-silabenzyl)molybdenum complex Cp*Mo(CO)23(Si,C,C)-Si(p-Tol)3} (1; Cp* = η5-C5Me5, p-Tol = p-C 6H4Me) was synthesized in high yield by removal of 4-(dimethylamino)pyridine (DMAP) from the (arylsilyl)(DMAP)molybdenum complex Cp*Mo(CO)2(DMAP){Si(p-Tol)3} (2) with BPh 3. The precursor, complex 2, was readily prepared by reaction of the (DMAP)(methyl)molybdenum complex Cp*Mo(CO)2(DMAP)Me (3) with tri-p-tolylsilane (HSi(p-Tol)3) through methane elimination. Study on the reactivity of 1 toward DMAP and nitrile revealed that complex 1 serves as a synthetic equivalent of the 16-electron silyl complex Cp*Mo(CO) 2{Si(p-Tol)3}. Thus, complex 1 reacted with DMAP quantitatively at room temperature to reproduce arylsilyl complex 2 through dissociation of the arene carbon atoms coordinated to molybdenum. Complex 1 also reacted with acetonitrile at room temperature to give the N-silyliminoacyl complex Cp*Mo(CO)22(C,N)-C(Me)-NSi(p-Tol) 3} (4) exclusively via cleavage of the Mo-C(arene) bonds followed by insertion of nitrile into the Mo-Si bond.

Original languageEnglish
Pages (from-to)2795-2803
Number of pages9
JournalOrganometallics
Volume32
Issue number9
DOIs
Publication statusPublished - 2013 May 13

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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