Sulfuric Acid → HCID 23332969, compound

Participants

Reaction Steps

A mixture of 2,2-dichloro-1-(2-hydroxy-5-carboxyphenyl)ethanol (1.25 g.), chloral hydrate (1.0 g.) and concentrated sulphuric acid (12.5 ml.) was stirred at room temperature for 3 days. The reaction mixture was poured onto ice, and the product was filtered off, washed with water, dried and crystallised from aqueous acetic acid to give 4-dichloromethyl-2-trichloromethylbenzo[1,3]dioxin-6-carboxylic acid, m.p. 209° C.

Provenance & Evidence