Pyridinium chloride → 2-(p-Chlorophenyl)-2-methyl-4,5-dichloro-6-hydroxyindan-1,3-dione

HRID 1659182Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([CH3:23])[C:16](=[O:17])[C:15]3[C:10](=[CH:11][C:12]([O:20]C)=[C:13]([Cl:19])[C:14]=3[Cl:18])[C:9]2=[O:22])=[CH:4][CH:3]=1.Cl.N1C=CC=CC=1>O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([CH3:23])[C:16](=[O:17])[C:15]3[C:10](=[CH:11][C:12]([OH:20])=[C:13]([Cl:19])[C:14]=3[Cl:18])[C:9]2=[O:22])=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 180 °C

Procedure

A stirred mixture of 2-(p-chlorophenyl)-2-methyl-4,5-dichloro-6-methoxyindan-1,3-dione (4.42 g., 0.012 mole) and pyridine hydrochloride (40 g.) is heated at 180°C. for 1 hour, then poured into water (500 ml.). The 2-(p-chlorophenyl)-2-methyl-4,5-dichloro-6-hydroxyindan-1,3-dione which separates is filtered and dried.

Workup

filtrationThe 2-(p-chlorophenyl)-2-methyl-4,5-dichloro-6-hydroxyindan-1,3-dione which separates is filtered
customdried

Sources & evidence

ORD record: ord-6ebd95b691fb47c89e579eb7f0bce305
Source dataset: uspto-grants-1976_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US03966966

Reaction notes

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