Synthetic approach for novel bis(α-aminophosphonic acid) derivatives of chromone containing 1,2,4,3-triazaphosphole moieties
作者:Tarik E. Ali、Silvia S. Halacheva
DOI:10.1002/hc.20520
日期:——
Terephthalic acid hydrazide (1) was reacted with phenylphosphonic dichloride to yield bis(1,3,4,2-oxadiazaphosphole) derivative 3, which was condensed with α-aminophosphonic acid derivative 4 to afford bis[(1,2,4,3-triazaphospholyl)(chromonyl)methylphosphonic acid] derivative 5. The addition of diethyl phosphite to Schiff bases 9 and 10 derived from the condensation of bis(4-amino-1,2,4,3-triazaphosphole)
对苯二甲酸酰肼 (1) 与苯基膦酰二氯反应生成双 (1,3,4,2-氧二氮杂磷) 衍生物 3,再与 α-氨基膦酸衍生物 4 缩合得到双[(1,2,4,3 -triazaphospholyl)(chromonyl)methylphosphonic acid] 衍生物 5. 将亚磷酸二乙酯加成到 Schiff 碱 9 和 10 中,由双 (4-氨基-1,2,4,3-三氮杂磷) 衍生物 6 或双 (4) 缩合得到-磷酰氨基-1,2,4,3-三氮杂磷酰)衍生物 7 与 3-甲酰-6-甲基色酮 (8) 生成双 [(1,2,4,3-三氮杂磷酰)(色酮基) 氨基甲基膦酸酯] 衍生物 11 和双[ (1,2,4,3-三氮杂磷酰基)(色酮基)磷酰基氨基-甲基膦酸酯]衍生物12。所有产品的结构均通过元素分析和光谱数据确定。© 2009 Wiley Periodicals, Inc. 杂原子化学 20:117–122