Bromine → HCID 23345398, compound

HRID 1856486Notes

Reaction equation

HRID 1856486 reaction equation
[CH2:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[CH2:3][S:2]1(=[O:11])=[O:10].[Br:12]Br>C(Cl)(Cl)(Cl)Cl.[Fe]>[Br:12][C:9]1[C:4]2[CH2:3][S:2](=[O:10])(=[O:11])[CH2:1][C:5]=2[CH:6]=[CH:7][CH:8]=1

Participants

5

Reactant 2

HCID 24408Bromine2×HCID 3136751,3-Dihydro-2H-2-benzothiophene-2,2-dione

Product 1

HCID 23345398HCID 23345398, compound

Reagents, catalysts & solvents 2

HCID 23925IronCatalystHCID 5943Carbon TetrachlorideSolvent

Procedure

1,3-Dihydrobenzo[c]thiophene 2,2-dioxide, previously described, is brominated with 1 equivalent of bromine in carbon tetrachloride solution in the presence of iron [CA 84, 89930 (1976)] at reflux until the bromine color disappears to give 4-bromo-1,3-dihydrobenzo[c]thiophene 2,2-dioxide.

Sources & evidence

ORD record
ord-3ce3c6bd57d84e4e84847d04430f2080
Source dataset
uspto-grants-1980_08
Patent number
US04219648

Reaction notes

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