N-methyl-2-pyrrolidone → 3-(Cycloundecen-1-yl)-1,2-diazacycloundec-2-ene

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Reaction Steps

In a four-necked flask provided with a condenser and a nitrogen gas inlet, 1.0 mol of tetrafluorosuccinic acid and 1.0 mol of 2-trifluoromethyl-p-phenylene diisocyanate were mixed with NMP to give a solid content concentration of 20% by weight, and 0.01 mol of diazabicycloundecene was added as a catalyst to the mixture. The mixture was stirred in the flask and allowed to react at 120° C. for about four hours.

Provenance & Evidence