Phosphorus pentachloride → HCID 21402903, compound

Participants

Reaction Steps

A mixture of 3.09 g of ethyl 2-chloro-9-hydroxythiazolo[5,4-f]quinoline-8-carboxylate, 20 ml of phosphorus oxychloride and 0.2 g of phosphorus pentachloride was refluxed for 1 hour and the reaction mixture was treated in the same manner as described in Example 5 to give ethyl 2,9-dichlorothiazolo[5,4-f]quinoline- 8-carboxylate.

Provenance & Evidence