Preparation and Hydrolysis of 3-Alkoxy-5-amino-4,6-dicyano-1,8,8-trimethyl-2-azabicyclo[2.2.2]octa-2,5-dienes
摘要:
Solid base catalyzed condensation reaction of acetone with malononitrile in alcohol gave 3-alkoxy-5-amino-4,6-dicyano-1,8,8-trimethyl-2-azabicyclo[2.2.2]octa-2,5-dienes. The 2-aza bridge of the compound was cleaved hydrolytically in dilute hydrochloric acid to give 6-carbomethoxy-2,6-dicyano-3,5,5-trimethylcyclohex-2-enone. The compound was further decarbomethoxylated in this conditions to give 2,6-dicyano-3,5,5-trimethylcyclohex-2-enone of which crystal structure was determined by X-Ray diffraction method.