1,4-Dibromobutane → HCID 11486256, compound

Participants

Reaction Steps

A stirred mixture of methyl 4-(3-hydroxyphenylsulfanyl)benzoate (13.0 g, 50.0 mmol) and 1,4-dibromobutane (21.0 g, 0.1 mol), anhydrous potassium carbonate (16.0 g) and 4-methylpentane-2-one (150 ml) was refluxed for 13 h. The hot mixture was filtered, the filtrate was evaporated to dryness and the partially crystalline residue was dissolved in a mixture of dichloromethane-petroleum ether (1:1) and then purified by column chromatography on silica gel using the same solvent mixture. The title ester was obtained as the main fraction (15.2 g, 76.9%), m.p. 43-45° C. For C16H19BrO3S (395.3) calculated: 54.69% C, 4.84% H, 20.22% Br, 8.11% S; found: 54.71% C, 4.80% H, 20.09% Br, 8.07% S.

Provenance & Evidence