Substituted benzopyranopyridopyrimidine ring syntheses by the ternary condensation of malononitrile, salicylaldehyde, and aromatic ketones in the presence of …

A Sakurai, Y Motomura…

文献索引：Sakurai,A. et al. Journal of Organic Chemistry, 1972 , vol. 37, # 10 p. 1523 - 1526

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被引用次数: 21

摘要

Compd R Ar MP,'C% vc-0, cm-1 PPmb la H CeH. 5 303-304 12 lb H p-CHaCsH4 299-300 12 IC H p-OHCeHc> 340 11 Id H o-OHC~ H~> 340 10 le H p-CHsOCeHa 278-279 17 If OCHs CaH6 291-294 11 1g OCHa p-CHaOCeH4 273-275 10 4a H CaH. 5 248-251 91 1765, 1750 2.25 (s, 3 H) 4b H p-CHaOCeH4 224-226 91 1770, 1750 2.25 (s, 3€ 1) 4c H p- AcOCeHp 262-264 67 1765, 1755 2.3 (5, 3 H), 2.6 (s, 3 H) 4d H m-0zNC~ H4> 335 82 ...