4-Chlorobenzotrichloride → 3,4-Dichlorophenyltrichloromethane

HRID 1701110

Reaction equation

HRID 1701110 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([Cl:11])([Cl:10])[Cl:9])=[CH:4][CH:3]=1.S(Cl)[Cl:13]>[Fe](Cl)(Cl)Cl>[Cl:13][C:7]1[CH:6]=[C:5]([C:8]([Cl:9])([Cl:10])[Cl:11])[CH:4]=[CH:3][C:2]=1[Cl:1]

Participants

4

Reactant 2

HCID 212774-ChlorobenzotrichlorideHCID 25353Sulfur dichloride

Product 1

HCID 256083,4-DichlorophenyltrichloromethaneYield 51.4%

Reagents, catalysts & solvents 1

HCID 24380Iron chloride (FeCl3)Catalyst

Conditions

Temperature
80 °C

Procedure

A mixture of 57.5 g (250 mmol) of p-chlorobenzotrichloride, 1.5 g (9.2 mmol) of iron(III) chloride and 28 g (272 mmol) of sulphur dichloride was warmed to 80° C. for 3 hours. Thereafter, it was worked up in the manner indicated in Example 1. 34 g of 3,4-dichlorobenzotrichloride were thus obtained.

Sources & evidence

ORD record
ord-8d0885b3be5147fdbd3f704b1cb056dd
Source dataset
uspto-grants-1980_03
Patent number
US04191711

Linked notes

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