Ethyl formate → N-Cyclohexyl-N-(2,2,6,6-tetramethyl-4-piperidinyl)formamide

Participants

Reaction Steps

80 g of 4-(N-cyclohexylamino)-2,2,6,6-tetramethylpiperidine and 32 g of tetrabutyl orthotitanate in 175 ml of ethyl formate were refluxed for 11 hours. Fractional distillation gave a fraction of boiling point 143°-144° C. under 0.4 mmHg. After solidification, this fraction was recrystallized from n-hexane. 4-(N-cyclohexyl-N-formylamino)-2,2,6,6-tetramethylpiperidine was isolated as a colorless solid of melting point 105° C.

Provenance & Evidence