📜6,8-Dichloro-4-Oxo-4H-1-Benzopyran-3-Carboxaldehyde 3-O-Methyl Oxime置于4 A Molecular Sieve,硫酸体系中,用 苯 作为反应溶剂,以49%的收率获得产物6,8-二氯-3-氰基色酮 参考文献:A Rare Acid-Promoted Elimination Of O-Methyl Oximes: A Practical Synthesis Of 3-Cyano-4-Benzopyrones 标题:A Rare Acid-Promoted Elimination Of O-Methyl Oximes: A Practical Synthesis Of 3-Cyano-4-Benzopyrones 摘要: DOI:10.1021/jo991031J
参考标题:Synthesis Of 1-Azaxanthones By Condensation Of 1,3-Bis(Trimethylsilyloxy)-1,3-Butadienes With 3-(Cyano)Benzopyrylium Triflates And Subsequent Domino 'Retro-Michael/nitrile-Addition/heterocyclization' Reaction 作者:Muhammad A. Rashid,Nasir Rasool,Bettina Appel,Muhammad Adeel,Vahuni Karapetyan,Satenik Mkrtchyan,Helmut Reinke,Christine Fischer,Peter Langer |发布日期:2008.5 摘要:Functionalized 1-Azaxanthones (5-Oxo-5H-[1]-Benzopyrano[2,3-B]Pyridines) Were Prepared By Tmsotf-Mediated Condensation Of 1,3-Bis(Trimethylsilyloxy)-1,3-Butadienes With 3-Cyanochromones And Subsequent Base-Mediated Domino 'Retro-Michael/nitrile-Addition/heterocyclization' Reaction.