A FACILE METHOD FOR THE SYNTHESIS OF NOVEL PYRIDINONE DERIVATIVES VIA KETENEN,S-ACETALS
摘要:
A simple and easy method is provided for the synthesis of the novel pyridinone derivatives (3a-e), (8a-c) and (10a-c) by the reaction of ketene acetals (2a-e), (7a-c) and (9a-c) with ethyl cyanoacetate respectively. Compounds (3b-d) reacted with triethyl orthoformate to afford the pyridinone derivatives (4-6) respectively. Compound 7a reacted with ethyl acetoacetate or diethyl malonate to give thiazolopyridinone derivative 11 or 12 respectively.
A FACILE METHOD FOR THE SYNTHESIS OF NOVEL PYRIDINONE DERIVATIVES VIA KETENEN,S-ACETALS
摘要:
A simple and easy method is provided for the synthesis of the novel pyridinone derivatives (3a-e), (8a-c) and (10a-c) by the reaction of ketene acetals (2a-e), (7a-c) and (9a-c) with ethyl cyanoacetate respectively. Compounds (3b-d) reacted with triethyl orthoformate to afford the pyridinone derivatives (4-6) respectively. Compound 7a reacted with ethyl acetoacetate or diethyl malonate to give thiazolopyridinone derivative 11 or 12 respectively.