共查询到19条相似文献,搜索用时 125 毫秒
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浅谈微波在有机合成化学中的应用 总被引:1,自引:0,他引:1
微波促进有机反应的研究已发展为一门引人注目的全新领域即微波促进有机化学,也称微波诱导催化有机反应化学,本文在简述微波有机合成特点的基础上介绍了微波在有机合成化学中的应用和发展。 相似文献
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微波辐射技术可用于多种有机反应,如氧化反应、缩合反应、还原反应、酯化反应、烃烷基化反应、烯烃加成反应、羰基加成-消除反应、重排反应、环化和开环反应、Diels-Alder成环反应、取代反应、脱保护基反应、酰基化反应、芳基化反应、自由基反应、Tipson Cohen反应、产生二氯卡宾反应、脱羧反应、磺化反应、催化氢化反应、Bischler Napieralski反应、Fries重排反应、偶合反应、Mannich反应及金属有机化合物的合成反应等。 相似文献
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This Feature Article focuses on the recent advances in synthesis of nanostructured carbon materials using microwave irradiation as the heating source. Although the microwave approach to chemical synthesis is relatively mature in organic synthesis, it is still in the early stage for nanomaterials synthesis, especially nanocarbons. Due to the energy efficient nature of microwave heating, there is a great opportunity to apply microwave irradiation to nanocarbon production, which normally requires high temperature, high vacuum or inert gas protections. Using microwave irradiation will give a green feature to the nanocarbon synthesis, since it offers high efficiency heating and fast carbonization. With our recent discovery, multi-walled carbon nanotubes can be synthesized through the microwave process even in air. Background about nanocarbons and microwave chemistry are introduced, the application of microwaves in synthesis of different types of nanocarbons is discussed and finally, the perspectives in the future research directions of microwave assisted nanocarbon synthesis are deliberated as well. 相似文献
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硫代烃基三甲基硅烷(RSSiMe3)是一种化学性质活泼,应用前景十分广阔的有机硅硫试剂。本文介绍近20年来它们的一些重要化学性质及其在有机合成中的应用。 相似文献
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在有机合成实验教学中,通过优选实验项目、设计实验体系及改进实验方法等手段,达到节约环保、减少物料的使用与排放、在实验过程中引导学生树立绿色化学思想观念和增强环境保护意识的目的. 相似文献
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《Journal of Sulfur Chemistry》2013,34(3):267-303
Syntheses, spectroscopic properties and reactions of thiohydrazonates are reviewed. The reactions of the title compounds are subdivided in sections that cover their rearrangement, oxidation and substitution. The utility of these esters in synthesis of thirty six different heterocyclic ring systems has also been presented. Their biological and industrial applications are pointed out. 相似文献