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- Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives. 本文研究了三氯化钛水溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取代喹喔啉类化合物的方法。
- quinoxalin derivatives 喹喔啉衍生物
- The chemistry of petroleum and its derivatives. 石油化学石油及其复合物的化学
- Resembling opium or its derivatives in activity. 起鸦片或其衍生物作用的
- Higher derivatives and taylor series. 高阶导数和泰勒级数。
- Derivatives come in two forms: options and futures. 衍生工具有两种：期权和期货。
- WHY ARE THE LUPANINE DERIVATIVES BITTER? 为什么白金雀儿碱的派生物是苦的?
- How can a scientific category have its derivatives? 科学范畴何以能衍生?
- Containing opium or any of its derivatives. 含鸦片或其衍生物的
- Any of several derivatives of this compound. 此类化合物的各种衍生物
- Any of various derivatives of this compound. 吲哚类产品任何一种由这种化合物制造出来的产品
- Many English words are derivatives of Latin words. 许多英语词来自拉丁语。
- WHY ARE THE LUPANINE DERIVATIVES BITTER ? 为什么白金雀儿碱的派生物是苦的？
- Derivatives were written across the blackboard. 黑板上写满了数学导数。
- Colorings made from coal-tar derivatives. 煤炭焦油所衍生出的色料。
- Natural cytokinins are all derivatives of adenine. 天然的细胞分裂素是腺嘌呤的衍生物。
- Keywords quinoxaline derivative;synthesis;Antitumor activities; 喹喔啉;合成;抗肿瘤活性;
- Many cyclopentane derivatives also absorb in this region. 很多环戊烷的衍生物在这个范围也出现吸收。
- The required partial derivatives are easily worked out. 欲求的偏导数不难得出。
- Securitisation is in its infancy, as is the use of derivatives. 证券化才出具雏形，衍生工具的使用也是方兴未艾。
