Dabco → HCID 21539316, compound

Participants

Reaction Steps

11.1 Parts of 7,14-diazadispiro[5.1.5.2]pentadecan-15-one, 2.9 parts of methyl isocyanate and a trace of 1,4-diazabicyclo[2.2.2]octane in 80 parts of dry benzene were heated at reflux for 48 hours, cooled and filtered. The filtrate was evaporated to dryness and the residue recrystallised from ethanol, and dried in vacuo to give 9 parts of 14-methylcarbamoyl-7,14-diazadispiro[5.1.5.2]pentadecan-15-one, having a melting point of 98° to 100°C. This material gave the following elemental analysis by weight:

Provenance & Evidence