S-phenyl chloromethanethioate

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

Procedure: 3.2 ml. of (phenylthio)carbonyl chloride are dissolved in 30 ml. of dioxane and a solution of 2.63 g. of 1-amino-2-imidazolidinone in a mixture of 10 ml. of dioxane and 10 ml. of water is added. 2N sodium hydroxide solution is added dropwise at room temperature so that the pH is about 7.5-8.0. About 15 ml. of 2N sodium hydroxide are required. The dioxane is then distilled off. An oil separates which crystallizes after a short while to give 3.2 g. of (2-oxo-1-imidazolidinyl)carbamothioic acid, S-phenyl ester, m.p. 154°-159° (after recrystallization from ethyl acetate). The dioxane is then distilled off An oil separates which crystallizes after a short while to give 3.2 g of (2-oxo-1-imidazolidinyl)carbamothioic acid, S-phenyl ester, m.p. 154°-159° (after recrystallization from ethyl acetate)

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

Procedure: 3.4 g. (0.04 mole) of 2-amino-2-methylpropanonitrile are dissolved in 10 ml. of dioxane and a solution of 3.2 ml. (0.2 mole) of (phenylthio)carbonyl chloride in 10 ml. of dioxane is added. After stirring for one hour at room temperature, the reaction mixture is filtered, the filtrate is concentrated, and the solid residue is recrystallized from a small amount of toluene to yield 2.7 g of (1-cyano1-methylethyl)carbamothioic acid, S-phenyl ester; m.p. 152°-155°. the reaction mixture is filtered the filtrate is concentrated the solid residue is recrystallized from a small amount of toluene

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

Procedure: 3.4 g. (0.04 mole) of 2-amino-2-methylpropanonitrile are dissolved in 10 ml. of dioxane and a solution of 3.2 ml. (0.2 mole) of (phenylthio)carbonyl chloride in 10 ml. of dioxane is added. After stirring for one hour at room temperature, the reaction mixture is filtered, the filtrate is concentrated, and the solid residue is recrystallized from a small amount of toluene to yield 2.7 g of (1-cyano1-methylethyl)carbamothioic acid, S-phenyl ester; m.p. 152°-155°. the reaction mixture is filtered the filtrate is concentrated the solid residue is recrystallized from a small amount of toluene

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

Procedure: 3.2 ml. of (phenylthio)carbonyl chloride are dissolved in 30 ml. of dioxane and a solution of 2.63 g. of 1-amino-2-imidazolidinone in a mixture of 10 ml. of dioxane and 10 ml. of water is added. 2N sodium hydroxide solution is added dropwise at room temperature so that the pH is about 7.5-8.0. About 15 ml. of 2N sodium hydroxide are required. The dioxane is then distilled off. An oil separates which crystallizes after a short while to give 3.2 g. of (2-oxo-1-imidazolidinyl)carbamothioic acid, S-phenyl ester, m.p. 154°-159° (after recrystallization from ethyl acetate). The dioxane is then distilled off An oil separates which crystallizes after a short while to give 3.2 g of (2-oxo-1-imidazolidinyl)carbamothioic acid, S-phenyl ester, m.p. 154°-159° (after recrystallization from ethyl acetate)

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

Procedure: 3.4 g. (0.04 mole) of 2-amino-2-methylpropanonitrile are dissolved in 10 ml. of dioxane and a solution of 3.2 ml. (0.2 mole) of (phenylthio)carbonyl chloride in 10 ml. of dioxane is added. After stirring for one hour at room temperature, the reaction mixture is filtered, the filtrate is concentrated, and the solid residue is recrystallized from a small amount of toluene to yield 2.7 g of (1-cyano1-methylethyl)carbamothioic acid, S-phenyl ester; m.p. 152°-155°. the reaction mixture is filtered the filtrate is concentrated the solid residue is recrystallized from a small amount of toluene