Reactivity of [1] benzopyrano [4, 3-c][1, 5] benzodiazepin-7 (8H)-ones towards some N-binucleophiles

B Trimeche, R Gharbi, S El Houla…

Index: Trimeche, Belsem; Gharbi, Rafik; El Houla, Souhir; Martin, Marie-Therese; Nuzillard; Mighri, Zine Journal of Chemical Research, 2004 , # 3 p. 170 - 173

Full Text: HTML

Citation Number: 0

Abstract

The behaviour of [1] benzopyrano [4, 3-c][1, 5] benzodiazepin-7 (8H)-ones 1a-c towards some N-binucleophiles have been studied. With non-aromatic hydrazines the reaction carried out in acidic medium led exclusively to the unexpected [1] benzopyrano [4, 3-c] pyrazol-4-ones 4 and 5. Compounds 1 reacted under less drastic conditions with variously substituted amidines and guanidines to give 5H-[1] benzopyrano [4, 3-d] pyrimidin-5-ones ...