反应详情

100 mg 1,1-dimethyl-1H-benzo[e]indole-2-carboxylic acid 3 (see under Example 1) were dissolved in 1.6 mL oxalyl chloride under vigorous developement of HCl-gas. While the solution was stirred at ambient temperature slowly a bright yellow began to precipitate. After 1.5 hours the reaction was complete and the excess of oxalylchloride was removed by distillation to give a yellow solid which was used without further purification.

1. customto precipitate
2. customthe excess of oxalylchloride was removed by distillation
3. customto give a yellow solid which
4. customwas used without further purification