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Borane dimethylsulfide (BMS) is a chemical compound with the chemical formula BH 3 ·S(CH 3) 2. It is an adduct between borane molecule ( BH 3 ) and dimethyl sulfide molecule ( S(CH 3 ) 2 ). It is a complexed borane reagent that is used for hydroborations and reductions .
Borane dimethylsulfide (BMS) is a complexed borane reagent that is widely used for hydroborations. [4] Much of the original work on hydroboration employed diborane as a source of BH 3. Usually however, borane dimethylsulfide complex BH 3 S(CH 3) 2 (BMS) is used instead. [5] It can be obtained in highly concentrated forms. [6]
It is obtained by hydroboration of (−)‐α‐pinene with borane dimethyl sulfide. [7] Dialkylboranes are also rare for small alkyl groups. One common way of preparing them is the reduction of dialkylhalogenoboranes with metal hydrides. [8]
Borane–tetrahydrofuran is an adduct derived from borane and tetrahydrofuran (THF). These solutions, which are colorless, are used for reductions and hydroboration, reactions that are useful in synthesis of organic compounds. A common alternative to BHF•THF is borane–dimethylsulfide, which has a longer shelf life and effects similar ...
X-ray crystal structures and 11 B NMR spectroscopic analyses of the coordinated catalyst-borane complex 2 have provided support for this initial step. [5] [7] Subsequently, the endocyclic boron of the catalyst coordinates to the ketone at the sterically more accessible electron lone pair (i.e. the lone pair closer to the smaller substituent, Rs).
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