imino(diphenyl)-lambda4-sulfane

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-Methyl-4H-chromen-4-one was reacted with Lawesson's reagent, and the product was treated with 1,1′-sulfinimidoyldibenzene to provide 2-(4-methyl-1,2-thiazol-5-yl)phenol.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 19.2 g (0.19 mol) of triethylamine in 50 ml of methylene chloride is added dropwise at room temperature, whilst stirring to a solution of 19 g (0.095 mol) of S,S-diphenylsulphilimine [compare Furukawa et al., Univ. Osaka: Tetrahedron Letters 1972, 1619-1622; Tamura et al., Univ. Osaka: Tetrahedron Letters 1972, 4137-4140] in 120 ml of methylene chloride and subsequently, whilst cooling slightly, a solution of 12.3 g (0.11 mol) of chloroacetyl chloride in 80 ml of methylene chloride is added dropwise. The mixture is stirred overnight at room temperature, the solvent is stripped off in vacuo, the residue is taken up in methylene chloride and the organic phase is washed with water until neutral. The product is then dried over sodium sulphate and the solution is evaporated in vacuo. N-(Chloroacetyl)-S,S-diphenylsulphilimine is obtained as an oily residue and is further processed as the crude product. subsequently, whilst cooling slightly the organic phase is washed with water until neutral The product is then dried over sodium sulphate the solution is evaporated in vacuo