Sodium Acetate → HCID 12067706, compound

Participants

Reaction Steps

General Procedure B (Dyes 1b, 1c, 2a, 2b, 3b, 4b). Indolium or benzothiazolium salt (5, 6, or 7, 1.00 mmol) was added at once to a boiling solution of enol ether 8 or 9 (500 mg, 2.0 mmol) in 5.0 mL of a methanol-chloroform mixture (1:1) followed by addition of 100 mg of sodium acetate. The reaction mixture was stirred at reflux for 30 min. After cooling, the dye separated as a crystalline solid. The dye was additionally purified by recrystallization from methanol.

Provenance & Evidence