1,2-Dichlorobenzene → 2,6-Dichlorobenzoxazole

HRID 986672Notes

Reaction equation

HRID 986672 reaction equation
[Cl:1][C:2]1[CH:11]=[CH:10][C:5]2[NH:6][C:7](=O)[O:8][C:4]=2[CH:3]=1.[Cl:12]C1C=CC=CC=1Cl>>[Cl:12][C:7]1[O:8][C:4]2[CH:3]=[C:2]([Cl:1])[CH:11]=[CH:10][C:5]=2[N:6]=1

Participants

3

Reactant 2

HCID 72391,2-Dichlorobenzene2×HCID 298586-Chloro-2,3-dihydrobenzoxazol-2-one

Product 1

HCID 771752,6-Dichlorobenzoxazole

Procedure

lf the process is carried out as in Example 1, but only 500 ml of o-dichlorobenzene is initially introduced, and the 6-chlorobenzoxazolin-2-one is metered in as a suspension in 500 ml of o-dichlorobenzene, then 2,6-dichlorobenzoxazole is obtained in the same yield and purity as in Example 1.

Workup

  1. additionis initially introduced

Sources & evidence

ORD record
ord-24f4c4a607bb4f74929a0c85cd564465
Source dataset
uspto-grants-1987_12
Patent number
US04714766

Reaction notes

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