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1β-Cyclodextrin as a supramolecular catalyst for the synthesis of 2Hindazolo[2,1-b]phthalazine-trione derivatives in water and their antimicrobial activities显示文摘An efficient and green method has been developed for the synthesis of 2H-indazolo[2,1-b]phthalazinetriones derivatives by employing 15 mol%β-cyclodextrinvia a one-pot multicomponent reaction of aldehyde,dimedone,hydrazine hydrate with succinic anhydride/phthalic anhydride in water at 80 ℃ for first time.The catalyst could be recovered and reused for four consecutive cycles without appreciable loss in catalytic activity and evaluated for in vitro antimicrobial activity against different Gram-positive and Gram-negative bacterial strains.The outcome of the screening study showed that compound 6d,6f and7 n exhibited excellent activity against E.coil.Whereas,compound 6f and 6h exhibited excellent activity against P.aeurginosa,and compound 6c,and 6e displayed again excellent activity against Staphylococcus aureus whereas compound 7o shows excellent activity against S.aureus and B.subtilis when compared with Ampicillin(standard control).The results indicated that maximum compounds are moderately effective against bacterial growth and their effectiveness is highest against standard drugs.Asha V.Chate Priyanka K.Bhadke Manisha A.Khande Jaiprakash N.Sangshetti Charansingh H.Gill 2017Chinese Chemical Letters2017,28,7:2
2环糊精及其衍生物在有机合成中的应用显示文摘综述了环糊精及其衍生物在各种有机化学反应中的应用,包括氧化、还原、取代、加成、光催化反应。最后从有机绿色合成的角度,展望了环糊精在有机合成的发展方向。田秉仁 褚慧敏 赵甜 黄青 王志忠 2017应用化工2017,46,11:2
3超声辅助合成油脂基双亲性超分子显示文摘为充分利用油脂精炼过程中的皂脚,实现绿色油脂资源的高值化利用,以油酸钠为原料,超声辅助快速合成具有端环氧基的油酸缩水甘油酯,然后以端环氧基油酸缩水甘油酯为原料,与4-叔丁基杯[4]芳烃在酸性条件下发生开环反应,利用超声辅助快速合成兼具长链烷基疏水基和羟基亲水基的油脂基双亲性超分子。通过单因素实验研究了4-叔丁基杯[4]芳烃与端环氧基油酸缩水甘油酯物质的量比、超声时间、超声温度和超声功率对产物得率的影响,并采用FTIR和NMR进行产物结构表征。结果表明:油脂基双亲性超分子最佳合成条件为4-叔丁基杯[4]芳烃与端环氧基油酸缩水甘油酯物质的量比1∶6、超声时间150 min、超声温度50℃、超声功率100 W,在此条件下产物得率高达94%,该法比传统回流搅拌合成方法需要的反应时间更短,副产物更少;产物结构中含有醚氧键、羟基、长链烷基、不饱和双键和苯基,赋予超分子亲水和亲脂的双亲性能。刘于嘉 叶金枝 喻艳华 刘利贤 杨罗妹 徐高峰 杨晓琴 2022中国油脂2022,47,10:0
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