1,1,2,2-Tetrachloroethylsulfenyl chloride → N-cyclohexyl-N-(1,1,2,2-tetrachloroethylthio)-bromomethanesulfonamide
Reaction equation
[CH:1]1([NH:7][S:8]([CH2:11][Br:12])(=[O:10])=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[Cl:13][C:14]([Cl:20])([S:18]Cl)[CH:15]([Cl:17])[Cl:16]>C(N(CC)CC)C>[CH:1]1([N:7]([S:18][C:14]([Cl:20])([Cl:13])[CH:15]([Cl:17])[Cl:16])[S:8]([CH2:11][Br:12])(=[O:10])=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A 5.1 g (0.051 mol) sample of triethylamine was added dropwise to a cooled (20° C.) solution of 11 g (0.043 mol) N-cyclohexylbromomethanesulfonamide and 10.1 g (0.043 mol) 1,1,2,2-tetrachloroethylsulfenyl chloride. After the addition was completed, the reaction was stirred at ambient temperature for 2 hours and then under reflux for 2 hours. The reaction mixture was then cooled, washed with water, dried over magnesium sulfate and evaporated under reduced pressure to give the N-cyclohexyl-N-(1,1,2,2-tetrachloroethylthio)-bromomethanesulfonamide product, which after crystallization from dioxane melted at 38°-40° C. The elemental analysis for the product is tabulated in Table I under Compound No. 8.
Workup
- additionAfter the addition
- temperatureunder reflux for 2 hours
- temperatureThe reaction mixture was then cooled
- washwashed with water
- dry with materialdried over magnesium sulfate
- customevaporated under reduced pressure
Sources & evidence
- ORD record
- ord-8d2a0defa4a94a6f957371d48e7a1040
- Source dataset
- uspto-grants-1981_10
- Patent number
- US04297124
Reaction notes
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