Potassium Cyanide → HCID 21539321, compound

Participants

Reaction Steps

4.8 Parts of 7,14-diazadispiro[5.1.5.2]pentadecane-15-thione, 2.92 parts of p-tolyl isocyanate, 0.2 parts of potassium cyanide and a trace of 1,4-diazabicyclo[2.2.2]octane in 100 parts of dry benzene were heated at reflux for 24 hours. The solvent was then evaporated off in vacuo and the residue treated with excess water and allowed to stand for 24 hours. The solution was extracted with chloroform and the axtracts dried and evaporated in vacuo. The residue was crystallised from ethanol to yield 5.4 parts of 14-p-tolylcarbamoyl-7,14-diazadispiro[5.1.5.2]pentadecane-15-thione as a colourless solid of melting point 127° to 129°C. This material gave the following elemental analysis by weight:

Provenance & Evidence