Dabco → HCID 21539312, compound

Participants

Reaction Steps

11.1 Parts of 7,14-diazadispiro[5.1.5.2]pentadecan-15-one, 6.88 parts of cyclohexyl isocyanate and a trace of 1,4-diazabicyclo[2.2.2]octane in 150 parts of dry benzene were heated at reflux for 30 hours, cooled and filtered to remove N,N'-dicyclohexyl urea. The benzene filtrate was evaporated to dryness and the residue crystallised from petroleum ether of boiling range 80°-100°C to give 2.60 parts of 14-cyclohexylcarbamoyl-7,14-diazadispiro[5.1.5.2]pentadecan-15-one having a melting point of 106° to 109°C and the following analysis by weight:

Provenance & Evidence