Dabco → HCID 21539322, compound

Participants

Reaction Steps

3.33 Parts of 7,14-diazadispiro[5.1.5.2]pentadecan-15-one, 2.19 parts of p-tolylisocyanate and a trace of 1,4-diazabicyclo[2.2.2]octane in 150 parts of dry benzene were heated at reflux for 24 hours. The solvent was evaporated in vacuo to yield a solid material which was recrystallised from ethanol to give 4.2 parts of 14-p-tolylcarbamoyl-7,14-diazadispiro[5.1.5.2]pentadecan-15-one as colourless crystals of melting point 136° to 138°C. This material gave the following elemental analysis by weight:

Provenance & Evidence