Phosgene → HCID 21389343, compound

Participants

Reaction Steps

To 5.05 g. diisopropylamine in 50 ml. dry benzene is added butyl lithium (31.5 ml. of a 1.6N solution in hexane). After 15 minutes, 7.65 g. of 1-methyl-N-(cyclohexylidene)-ethylamine prepared as in Example 1 is added during about 2 minutes. 5.5 g. benzonitrile is added after 10 minutes to give a deep red solution, and after a further 10 minutes about 5 ml. of water are added, causing the color to change to pale yellow. After 30 minutes, 5 g. of phosgene in a 12.5% solution in benzene is added dropwise to this mixture at 0°. After 1 hour, the reaction was worked up as in Example 1 to give the same product.

Provenance & Evidence