4-Chlorophenyl Isocyanate → 3-Carbethoxy-4-(4-chlorophenylaminocarbonyl)thiomorpholine
Reaction equation
[C:1]([CH:6]1[CH2:11][S:10][CH2:9][CH2:8][NH:7]1)([O:3][CH2:4][CH3:5])=[O:2].[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([N:19]=[C:20]=[O:21])=[CH:15][CH:14]=1>C(N(CC)CC)C>[C:1]([CH:6]1[CH2:11][S:10][CH2:9][CH2:8][N:7]1[C:20]([NH:19][C:16]1[CH:17]=[CH:18][C:13]([Cl:12])=[CH:14][CH:15]=1)=[O:21])([O:3][CH2:4][CH3:5])=[O:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Seven grams of 3-carbethoxythiomorpholine and 6.5 g of 4-chlorophenyl isocyanate were added to 60 ml of hexanes containing 10 drops of triethylamine as a catalyst. A mild exothermic reaction took place as the reactants mixed. After the mixture cooled to room temperature, the precipitate was collected by filtration and recrystallized from a mixture of methylene chloride and ether to give 4 g of 3-carbethoxy-4-(4-chlorophenylaminocarbonyl)thiomorpholine, mp 152.5°-154.5° C.