Sulfuric Acid → 2-Benzyltoluene

HRID 1764603Notes

Reaction equation

HRID 1764603 reaction equation
[C:1]1(Cl)[CH:6]=[CH:5][CH:4]=[C:3]([CH3:7])[C:2]=1[CH3:8].O.O.B(F)(F)F.S(=O)(=O)(O)O>C1C=CC=CC=1>[CH2:7]([C:3]1[CH:4]=[CH:5][CH:6]=[CH:1][C:2]=1[CH3:8])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 328841-Chloro-2,3-dimethylbenzeneHCID 61591Boron trifluoride dihydrate

Product 1

HCID 697382-BenzyltolueneYield 91.1%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

A solution of 70 parts of xylyl chloride in 240 parts of benzene is added to a mixture of 60 parts of boron fluoride dihydrate and 250 parts of 75 per cent strength by weight sulfuric acid at from 75° to 78° C, whilst stirring vigorously. After 6 hours, the organic phase is separated off and 82 parts (91.1% of theory) of o-benzyl-toluene boiling at 98° C at 0.2 mm Hg are isolated by distillation.

Workup

  1. customthe organic phase is separated off

Sources & evidence

ORD record
ord-6f1c2bee9b2e4207b184765b2719bca8
Source dataset
uspto-grants-1978_09
Patent number
US04117019

Reaction notes

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