Regioselective Synthesis of Novel Functionalized
Pyrano[2′,3′:4,5]pyrimido[1,6-b][1,2,4,5]triazaphosphepines
作者:T. E. Ali、M. A. Assiri、I. S. Yahia、H. Y. Zahran、M. H. Meselhy、M. S. A. Hussien
DOI:10.1134/s1070428021010115
日期:2021.1
Abstract The reactions of 6-acetyl-3-amino-4-imino-7-methyl-5-phenyl-3,5-dihydro-4H-pyrano[2,3-d]pyrimidine with triethyl phosphite and some electrophilic reagents, namely 1,2-dibromoethane, oxalyl chloride, chloroacetyl chloride, and ethyl chloroacetate, were studied. These one-pot three-component reactions regioselectively afforded four new 11-acetyl-2-ethoxy-10-methyl-12-phenylpyrano[2′,3′:4,5]pyrimido[1
摘要 6-乙酰基-3-氨基-4-亚氨基-7-甲基-5-苯基-3,5-二氢-4 H-吡喃并[2,3- d ]嘧啶与亚磷酸三乙酯和某些亲电试剂的反应研究了1,2-二溴乙烷,草酰氯,氯乙酰氯和氯乙酸乙酯。这些一锅三组分反应区域选择性地提供了四个新的11-乙酰基-2-乙氧基-10-甲基-12-苯基吡喃并[2',3':4,5]嘧啶并[1,6- b ] [1,2 ,4,5λ 5 ] triazaphosphepin -2-酮在69-73%的产率。