HCID 10727480, compound → HCID 22318622, compound

Participants

Reaction Conditions

Reaction Steps

9.95 g of methyl 3-chloro-2-hydroxy-5-methoxybenzoate were taken up in 300 ml of hydrobromic acid (48% strength in water). 1.79 g of red phosphorus were added, and the mixture was then stirred at 85° C. for 15 hours. After cooling, the reaction mixture was poured into about 1 liter of ice-cold water and extracted with ethyl acetate. The crude product obtained after drying and concentration of the ethyl acetate phase was used for the next step without further purification.

Provenance & Evidence