【摘 要】
：
A novel and efficient route for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes is described through one-pot multi-component
【机 构】
：
Department of Organic Chemistry,Faculty of Chemistry,University of Kashan,
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
A novel and efficient route for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes is described through one-pot multi-component reaction of dimedone and 2-naphthol with various aryl aldehydes using ZnO nanoparticles under solvent-free conditions.This method provides a novel and improved pathway for the synthesis of xanthenes in the terms of excellent yields,short reaction times,reusability and low catalyst loading.
A novel and efficient route for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo [a, j] xanthenes is described through one-pot multi-component reaction of dimedone and 2-naphthol with various aryl aldehydes using ZnO nanoparticles under solvent-free conditions. This method provides a novel and improved pathway for the synthesis of xanthenes in the terms of excellent yields, short reaction times, reusability and low catalyst loading.
其他文献
The pedestrian protection technology must be used in automotive design if China-made automotives want to compete and grow strong in the world in the future. In
A material can’t get any thinner. Graphene consists of just one layer of carbon atoms but that‘s not the only reason materials scientists are interested in th
目前已发现的黄岩境内宋代青瓷窑址主要有沙埠镇的7处,院桥镇的2处以及平田乡和头陀镇的各1处,共11处。本文以此为基础,阐述了黄岩宋代青瓷窑业的发展概况。
At present, th
赤坎古镇位于开平的中部,镇区面积三平方公里,四周被潭江支流水系包围,其中米岗冲、滘口冲、镇海水是主要的支流,与干流潭江构成了赤坎镇一带的河网。河流两岸是土质松散的冲
冷战与美苏两极对峙曾是影响战后整整一个时代的国际政治格局，苏美关系对抗与缓和的交替成为这个格局的主要特色。这个过程伴随着两国力量的此消彼长和国际政治的波诡云谲，最终
2012年8月20日,塞拉尼斯和印尼国家石油公司(Pertamina)共同亮相合作备忘录的签字仪式,展示塞拉尼斯在印尼的业务发展,双方近日发表联合声明以促进印尼燃料乙醇项目的发展。
建国以来,我国按照计划经济的管理模式成立了一大批水利工程管理单位,但是随着社会主义市场经济体制的建立,旧的管理体制已严重影响管理单位的发展,存在的问题也日趋突出。本
One new and 16 known compounds were isolated from Abies sibirica.Their structures were assigned mainly on the basis of NMR and MS spectroscopic data.In bioassay
入夏以来,我国大部分省份都遭遇了不同程度的强降雨,导致城市内涝、一些河流超警戒水位运行等险情,有些地方甚至发生了洪水、泥石流等严重灾害,对人民群众的生命和财产安全及
本文重点就女性馆员从事学术研究的几个问题作了探讨:一、高校图书馆女性馆员从事学术研究的素质;二、时代发展和实际工作需要女性馆员从事学术研究;三、女性馆员从事学术研