vinylic
- vinylic的基本解释
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乙烯的
- 更多网络例句与vinylic相关的网络例句 [注:此内容来源于网络,仅供参考]
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Another aspect of the invention is a method for preparing a polymer by obtaining and then subjecting to polymerization conditions, a vinylic monomer having formula (4), where R1 to R6 are as defined above.
另一个方面的发明,是一个法制备聚合物获取,然后服从,以聚合条件, vinylic单体后,公式( 4 ),其中R1的,以r6是如上所确定的。
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At last,a convergent and general protocol to marine natural product,as demonstrated by the enantioselective total synthesis of malyngamides O,P,Q,R, 5"-epi-Q and 5"-epi-R bearing terminal vinylic chloride structure,was developed in detail.E,(7S)-7-methoxytetradec-4-enoic acid was prepared using the above described Johnson-Clainsen rearrangement,the terminal vinyl chloride was constructed using Wittig reaction as key step,the pyrrolidone derivative was constructed using L-serine as natural chiral pool.Starting from the synthesis of malyngamides O and P to explore the general route,an aldol reaction of methyl acetate with the vinyl chloride part in the presence of LDA gave the skeleton of amine portion,followed by amidation with the fatty acid finished the synthesis of malyngamide P.
先以malyngamides O和P为试点探索通用合成路线,将乙酸甲酯和烯氯部分在LDA存在下进行aldol反应得到氨部分的骨架,再将手性不饱和脂肪酸和氨部分进行酰胺化反应完成了malyngamide P的合成,将P在碱性条件下进行烯醇甲基化反应完成了malyngamide O的全合成。
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Treatment of polystyrene-supported selenium ,bromide with lithium acetylides afforded polystyrene-supported selenoacetylene, which reacted with dicyclohexylborane giving a way for stereoselective synthesis of polymer-supported- vinylic selenides .
聚苯乙烯负载硒溴与炔基锂反应合成聚苯乙烯负载炔基硒醚,再与二环己基硼烷反应制得聚苯乙烯负载顺式烯基硒醚;此负载型烯基硒醚在NiCl2(PPh3)2存在下与格氏试剂发生偶联反应,提供了一种有效的-1,2-二取代乙烯的固相有机合成方法
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Thus. Treatment of CR1R2=C=CH2 (R1 = R2 = Me; R1 = H, R2 = n-Bu; R2 = Ph; R2 = cyclohexyl; R2 = cyclopentyl, R2 = C6H5O, R2 = 2-IC6H4O, R2 = 4-IC6H4O) with bisdiborn in the presence of Pd2 (5 mol %) and 3-iodo-2-methyl-2-cyclohexen-1-one (5 mol %) in toluene at 80 oC gave products bearing both vinylic and allylic boron moieties in good to excellent yields.
但我们发现可以使用Pd金属错合物与有机碘化物共同催化下的系统,来进行此种加成反应。溶剂的选择以甲苯为最佳,Pd错合物以没有强配位基存在为最好的选择。
- 更多网络解释与vinylic相关的网络解释 [注:此内容来源于网络,仅供参考]
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vinylic foam:乙烯泡沫塑料
vinylglycollic acid 乙烯基乙醇酸 | vinylic foam 乙烯泡沫塑料 | vinylidene chloride 乙烯叉二氯