The Chemistry of [1,1′-bis(o-Carboranyl)]Borane η2-σ-Silane Adduct

Mohanad Diab, Kuldeep Jaiswal, Deependra Bawari, Roman Dobrovetsky*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We report here a new route for the preparation of [1,1′-bis(o-carboranyl)]borane, a 3D analogue of 9-borafluorene, η2-σ-silane adduct (1-H-SiEt3) in high yields (>80 %). The nature of B−H−Si bonding was studied by density functional theory (DFT) computations. Preliminary reactivity study of 1-H-SiEt3 with small molecules was carried out. Interestingly, 1-H-SiEt3 reacts with benzophenone in hexane producing the deoxygenation product Ph2CH2. While in benzene, 1-H-SiEt3 reacts with benzophenone leading to mixture of Ph2CH2 and Ph3CH (3 : 1). Ph3CH is formed via addition of benzene to the carbonyl followed by deoxygenation. In contrast, the reaction of benzophenone with Et3SiH in presence of a catalytic amount of 1-H-SiEt3 leads to hydrosilylation product Ph2(H)C−OSiEt3.

Original languageEnglish
Article numbere202300010
JournalIsrael Journal of Chemistry
Volume63
Issue number7-8
DOIs
StatePublished - Aug 2023

Funding

FundersFunder number
Israel Science Foundation195/22

    Keywords

    • Borane
    • Carborane
    • Lewis acid
    • Main Group
    • Silane

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