Sulfuric Acid → 2-Benzyltoluene

HRID 1764605Notes

Reaction equation

HRID 1764605 reaction equation
[CH3:1][C:2]1[C:7]([CH2:8]Cl)=[CH:6][CH:5]=[CH:4][CH:3]=1.S(=O)(=O)(O)O.O=P12OP3(OP(OP(O3)(O1)=O)(=O)O2)=O>C1C=CC=CC=1>[CH2:8]([C:7]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[CH3:1])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 11093alpha-Chloro-o-xyleneHCID 14812Phosphorus oxide (P4O10)

Product 1

HCID 697382-BenzyltolueneYield 89.8%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

A solution of 70 parts of o-xylyl chloride and 200 parts of benzene is added in the course of 2 hours, whilst stirring thoroughly, to a mixture of 250 parts of 70 per cent strength by weight sulfuric acid and 72 parts of phosphorus pentoxide at from 75° to 77° C. After a further 4 hours at from 75° to 77° C, the organic phase is separated off and 80.9 parts (89.8% of theory) of o-benzyltoluene boiling at 98° C at 0.2 mm Hg are isolated by fractional distillation.

Workup

  1. customthe organic phase is separated off

Sources & evidence

ORD record
ord-961b4622b5014718a02df29e1323aa1a
Source dataset
uspto-grants-1978_09
Patent number
US04117019

Reaction notes

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