(Dimethyl sulfide)trihydroboron → HCID 19888690, compound

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Reaction Steps

A solution of the product of step (i) above (1.6 g, 0.0046 mol) in anhydrous tetrahydrofuran (30 ml) is heated to the reflux temperature under nitrogen atmosphere and a mixture of a 10M solution of borane-methyl sulfide (1.4 ml, 0.0014 mol) and anhydrous tetrahydrofuran (10 ml) is slowly dripped in. The obtained solution is refluxed for 4 hours and then diluted with methanol (10 ml). The solvent is evaporated off under vacuum and the obtained residue is dissolved in ethyl ether. The organic solution is made acidic by the addition of HCl saturated isopropanol and the product of the title is obtained therefrom by filtration (0.9 g) M.p. 175°-178° C.

Provenance & Evidence