反应详情

To a solution of 50 g. of 2,6-dimethylpiperidine in 300 ml. of benzene is added 60 g. of phosgene and the mixture is refluxed for 3 hours. The solid which had separated was filtered and the filtrate was concentrated and distilled under vacuum to obtain 2,6-dimethylpiperidinoyl chloride.

1. customThe solid which had separated
2. filtrationwas filtered
3. concentrationthe filtrate was concentrated
4. distillationdistilled under vacuum