The Journal of Organic Chemistry

Condensation reactions of (1E, 3E)-4-amino-3-cyano-4-methoxy-1-phenyl-2-azabutadiene and electrocyclizations of diazatrienes

F Freeman, DSHL Kim

文献索引：Freeman, Fillmore; Kim, Darrick S. H. L. Journal of Organic Chemistry, 1992 , vol. 57, # 2 p. 550 - 552

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被引用次数: 10

摘要

9 yield than the reported synthesis of pyrazine 7.24 The PPTS-catalyzed reaction of 2-aza-1, 3-butadiene 2 with triethyl orthoacetate gave 2-cyano-3-methoxy-5-methyl-6-phenyl-l, 6diazabenzene (8, 43%) and its precursor 2-cyano-5-ethoxy-3-methoxy-5-methyl-6-phenyl-