查询词典 membered
- 与 membered 相关的网络例句 [注：此内容来源于网络，仅供参考]
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The present method was proved to be a more convenient and effective approach to the N-monodemethylated 12-membered-ring erythromycin derivative.
结论该方法是制备N-去甲基十二元环红霉素衍生物的方便、有效的新途径。
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Employing CuI(5 mol%), N,N-dimethylglycine hydrochloride(10 mol%) and K_2CO_3(2 equiv.) in refluxing THF as the optimized reaction conditions,the four-membered 4-alkylidene-2-azatidinones could be efficiently synthesized.
当以3-溴-3-N-苯基-丁烯酰胺为底物，在5 mol%CuI为催化剂，10 mol%N，N-二甲基甘氨酸盐酸盐为配体，2当量K_2CO_3作碱，THF回流的反应条件下，可以高效的合成2-亚甲基-4-氮杂环丁酮类化合物。
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Diels-Alder reaction has been one of the cornerstone reactions in organic chemistry for the construction of six-membered rings and the formation of carbon-carbon binds.
Diels-Alder 反应是有机化学中建构六员环和碳碳键生成最为重要的反应之一。
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Diels-Alder reaction has been one of the cornerstone reactions in organicchemistry for the construction of six-membered rings and the formation ofcarbon-carbon binds.
Diels-Alder 反应是有机化学中建构六员环和碳碳键生成最为重要的反应之一。
- 推荐网络例句
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If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!
如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！
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China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.
中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。
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Well, Jerry would rattle off all the details of that movie.
那么，杰瑞会急促背诵那部电影所有细节。