4-Methylphenyl isocyanate → 4-p-Tolylcarbamoyl-2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one

Participants

Reaction Steps

Using the same procedure as described in Example 4, 17 parts of 2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one and 14.3 parts of p-tolyl isocyanate were reacted together and afforded a solid material which was recrystallised from petroleum ether (of boiling range 60° to 80°C) to yield 21 parts of 4-p-tolylcarbamoyl-2,2,7,7-tetramethyl-1,4-diazacycloheptan-5-one of melting point 126°C. This material gave the following elemental analysis by weight:

Provenance & Evidence