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The C_(60)-fused tetrahydrofuran derivatives are excellent synthons for further functionalization.While treated with different equiv,of BF_3·OEt_2 at various temperature,several novel functionized fullerene derivatives have been successfully synthesized.2.1,4-Fullerenols C_(60)ArOH were synthesized via the reaction of[60]fullerene with 4-substituted phenylhydrazine hydrochlorides and sodium nitrite under moisture and aerobic conditions.

这种四氢呋喃环合富勒烯衍生物作为一个合成中间体又可发生进一步的衍生化反应，其与不同当量BF_3·OEt_2在不同温度条件下可以得到二氢呋喃环合富勒烯衍生物、三元环合富勒烯衍生物等。2。

Fig.4 When phosphatic buffer substituted for the first anti-Brdu antibody,no BrdU immunoreactive neurons appeared.

图4 以磷酸缓冲液替代抗BrdU第一抗体后，未见有BrdU免疫反应神经元。

On the basis of ascertaining that phosphomolybdic acid modified platinum electrode has higher catalytic activity to methanol oxidation , three kinds of transition metal substituted phosphomolybdic acids were synthesized, and the IR spectrum indicated that the compounds still kept Keggin structure.

在证实了磷钼酸修饰铂电极对甲醇氧化具有较高活性的基础上，合成了3种过渡金属取代的磷钼酸，通过红外光谱测试仍为Keggin结构，并制备了过渡金属取代磷钼酸修饰铂电极，研究了修饰铂电极在硫酸溶液中的电化学行为及对甲醇的催化氧化作用。

The results show that the three kinds of heteropolyacid modified platinum electrodes have the higher electrocatalytic activity to methanol oxidation, PMnMo11 modified platinum electrode has the highest electrocatalytic activity. Meanwhile the anti-poison effect to carbon monoxide of platinum electrode can been improved by modification of transition metal substituted phosphomolybdic acid.

结果表明，三种过渡金属取代磷钼酸修饰铂电极均能够提高铂电极的催化活性，其中PMnMo11修饰铂电极对甲醇的催化活性最高，同时铂电极经三种过渡金属取代磷钼酸修饰后抗一氧化碳毒化能力增强。

Thus, the phosphonate moiety is remainedin the products and this methodology can be used in the synthesis of substituted vinylphosphonates.

因此在本烯化反应中保留了膦酸酯基团，可用来合成取代的烯基膦酸酯。

Which has substituted such traditional technologies as Zinc electroplating, Chromium electroplating, Zinc hot-dipping , Zinc hot spraying, phosphorize etc

取代了电镀锌、电镀镉、热浸锌、热喷锌、磷化等传统工艺技术

The toxicity of selected compounds and their binary mixtures of sodium dodecyl sulfate with three substituted aromatic compounds to photobacterium phosphoreum was investigated, respectively.

研究阴离子表面活性剂十二烷基硫酸钠和苯酚、硝基苯、甲苯3种取代芳烃对发光菌的单一毒性，以及在等浓度配比条件下，SDS与这3种取代芳烃二元混合体系的联合毒性效应，并采用毒性单位、相加指数、相似性参数和泥合毒性指数进行毒性评价。

Five phenyl substituted phthalide derivatives were prepared through Vilsmeier reaction, Chloromethylation reaction, and so on.

二尝试多种方法和路线合成了苯酞3位延伸出两个碳原子的35个目标化合物。

Other 3-(2-aminoethyl)substituted phthalide\'s derivatives were synthesized by Reductive Alkylation of 3-aminoethylphthalide, which was obtained by hydrogenation of 3-acetonitrile phthalide.

比扣扣灵(Bicuculline，BIC)是GABAa受体的经典竞争性拮抗剂，它与GABA识别位点高亲和力结合，选择性阻断GABAa受体，故长期以来一直把它作为识别GABAa受体的工具药。

Speak too fast It is slow to speak Say that 30 years passed too It was God that suddenly woke up The playwriter of destiny has substituted and done .......

说也快啊说也慢啊说也三十年过了是老天爷突然睡醒了还是命运的编剧换了人做。。。。。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！