Synthesis and biological study of novel methylene-bis-chalcones and substituted methylene-bis-pyrimidines/pyrimidinones
作者:Adki Nagaraj、Cherkupally Sanjeeva Reddy
DOI:10.1002/jhet.5570440534
日期:2007.9
A series of novelmethylene-bis-chalcones was prepared by the reaction of 5,5′-methylene-bis-salicylaldehyde with different acetophenones, subsequent treatment of methylene-bis-chalcones with urea/thiourea gave the corresponding methylene-bis-pyrimidinones/methylene-bis-mercaptopyrimidines in good yields. Characterization of the new compounds has been done by means of IR, 1H NMR, MS and elemental analysis
通过5,5'-亚甲基-双-水杨醛与不同的苯乙酮反应制备了一系列新型亚甲基-双-查尔酮,随后用脲/硫脲处理亚甲基-双-查尔酮,得到了相应的亚甲基-双-嘧啶酮/亚甲基双巯基嘧啶,收率高。通过IR,1 H NMR,MS和元素分析对新化合物进行了表征。还已经评估了化合物的抗菌,抗结核和抗真菌活性。
Sustainable Catalytic Process with a High Eco-scale Score for the Synthesis of Novel Series of Bischalcones through Claisen-Schmidt Condensation
作者:Wael A. A. Arafa
DOI:10.1002/jhet.3063
日期:2018.2
An efficient, sustainable, and green method for the synthesis of novel series of bischalcones was developed using an environmentally benign ionic liquid as catalyst under ultrasound irradiation. This newcatalyst affords diverse bis‐α, β‐unsaturated ketones in excellent yields under ambient reactionconditions in water. Moreover, the catalyst found to be active down to 15 mol% and affords the products
Synthesis and biological evaluation of novel methylene-bis-[1,5]-benzodiazepines
作者:M. Raghu、A. Nagaraj、Ch. Sanjeeva Reddy
DOI:10.1002/jhet.5570450427
日期:2008.7
A series of novel methylene-bis-chalcones 3 was prepared by the reaction of 5-(3-formyl-4-hydroxybenzyl)-2-hydroxy benzaldehyde 2 with different acetophenones, subsequent treatment of compound 3 with an appropriate o-phenylenediamine gave the corresponding methylene-bis-[1,5]-benzodiazepines 4/5 in good yields. Characterization of the new compounds has been done by means of IR, 1H NMR, MS and elemental
通过使5-(3-甲酰基-4-羟基苄基)-2-羟基苯甲醛2与不同的苯乙酮反应,制得一系列新型的亚甲基双查尔酮3,随后用适当的邻苯二胺处理化合物3,得到相应的亚甲基-双-[1,5]-苯并二氮杂4/4,收率很高。通过IR,1 H NMR,MS和元素分析对新化合物进行了表征。还已经评估了化合物的抗菌和抗真菌活性。