On April 30, 1998, Jorand-Lebrun, Catherine; Valognes, Delphine; Halazy, Serge published an article.COA of Formula: C7H13ClN2O The title of the article was Use of triphosgene for direct preparation of carbamoyl chlorides from tertiary benzylamines. And the article contained the following:
Treatment of tribenzylamine with triphosgene in CH2Cl2 gave dibenzylcarbamoyl chloride in 71% yield. Several other amines, e.g., I (X = CO, MeN), underwent similar reactions. The experimental process involved the reaction of 4-Ethyl-piperazine-1-carbonyl chloride(cas: 53788-12-8).COA of Formula: C7H13ClN2O
The Article related to triphosgene reaction tertiary amine, carbamoyl chloride preparation, General Organic Chemistry: Synthetic Methods and other aspects.COA of Formula: C7H13ClN2O
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics