Sodium Carbonate → HCID 68563385, compound

Participants

Reaction Steps

A mixture of 1.6 mL (16 mmol) 1-methyl-2-pyrrolidone and 10 mL phosphoryl chloride (POCl3) in 10 mL 1,2-dichloroethane was stirred for 15 min and 1.75 g (10 mmol) methyl indole-6-carboxylate and 1.6 mL (16 mmol) 1-methyl-2-pyrrolidone in 10 mL 1,2-dichloroethane was added. The mixture was heated to reflux for 2 h. Water and Na2CO3 aq. was added to adjust to pH=9. Subsequently the mixture was extracted with DCM and the combined organic layers were washed with water, dried with Na2SO4 and evaporated to dryness. Trituration with acetone provided 1.45 g (57%) of the title compound as light brown solid. MS (m/e): 257.2 (MH+).

Provenance & Evidence