R3 and R6 respectively represent same or different hydrocarbyl;
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2. 本文报道了一种合成二烃基二硒醚的新方法。
A new method for the synthesis of dialkyl diselenides is reported in this paper.
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3. 如前记载，二烃基和二甲基并不适合这个意图。
As mentioned before, dialkyl dimethyl quats are not suitable for this purpose.
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4. 对混合三烃基锡化合物的研究表明其具有多重活性。
Study on trialkytin compounds shows their biologic activity varies with alkyl.
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5. 此法操作简单，产量稳定且易于控制在一烃基化阶段。
The features of this method are: simple preparative procedure, reproducible yield and easy control of monoalkylation.
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6. 探讨了苯环上烃基化的条件以及查尔酮合成方法和条件。
The synthesis methods of chalcone and benzene ring alkylation are discussed.
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7. Q 1 是可被取代的饱和或不饱和的5-或6-元环烃基等；
Q1 represents optionally substituted, saturated or unsaturated 5- or 6-membered hydrocarbyl, etc.
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8. 萃取剂分子中烃基结构的变化对各种金属离子的萃取能力有着不同程度的影响。
The structural variation of the hydrocarbyl groups in the extractant molecules has the different influences on the extractability of various metal ions.
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9. 根据权利要求1中的普鲁兰氨基烃基醚，它应为自由胺形式或有机、无机盐形式。
The pullulan aminoalkyl ether according to claim1, wherein the pullulan aminoalkyl ether is in its free amine form or its organic or inorganic acid salt form.
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10. 普鲁兰氨基烃基醚的有机盐和无机盐可由普鲁兰氨基烃基醚与酸在常规条件下反应获得。
The organic or inorganic acid salts of pullulan aminoalkyl ether can be prepared by reacting pullulan aminoalkyl ether obtained as above with acids in a conventional manner.
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11. 结果表明：所制得的超疏水表面是由微-纳“多孔”结构和疏水烃基长链所共同赋予的。
Results indicate that the micro - and nano-scale porous structure together with the grafted hydrophobic alkyl long chains endows the aluminum alloy surface with the superhydrophobic property.
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12. 一种无色糖浆状液态二烃基醇，HOCH2CH2oh，用作冷却和加热系统中的防冻剂。
A colorless, syrupy alcohol, HOCH2CH 2oh, used as an antifreeze in cooling and heating systems.
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13. 采用合成氨厂的氨合成气代替纯氢气使脂肪腈加压催化氢化 ，可一步制得双脂肪烃基仲胺。
A new process has been developed to synthesize p-aminophenol methyl ether from p-nitrophenol methyl ether by catalytic hydrogenation, using ammonia synthesis gas instead of pure hydrogen.
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14. 可吸收的6，6-二烃基-1，4-二氧杂环庚烷-2-酮及其环状二聚物的共聚物和混合物。
Absorbable copolymers and blends of 6,6, -dialkyl-1,4-dioxepan-2-one and its cyclic dimer.
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15. 本工艺程序提供了从链烯、环烯、芳链烯、链烷醇、环烷醇、芳烷醇来制备过氯酸烃基酯的方便方法。
The process provides a facile way of producing hydrocarbyl perchlorates, from alkenes, cycloalkenes, aralkenes, alkanols, cycloalkenes and aralkanols .
Bernard Weiss of the University of Rochester in New York, an expert on toxins who was not involved in the research, said perfluoroalkyl acids are a known neurotoxin.
Then, disclosed is a method for separating and collecting the active component from the alkyl tin alkoxide catalyst composition as a useful dialkyl tin dialkoxide.
Hydrogen and carbon monoxide can then be blended into syngas, a replacement for current hydrocarbon-based combustibles like gasoline, diesel and jet fuel.
The addition-hydrolysis reaction was applied to the synthesis of unsaturated aldehyde by the -reaction of 2-H benzimidazolium iodide with alkenyl magnesium bromide.
Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate through a radical hydrocarbylation mechanism to yield 5 benzyl 2,3 dimethylpyrazine.
Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
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25. 臭氧能与不饱和烃及氮氧化物反应，并产生大量自由基和官能团。
Ozone can reacts with unsaturated hydrocarbons or nitrogen oxides, and generates numerous free radicals.
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26. 用对甲苯磺酸酸式水解烃羧酸甲酯基和烃羧酸高碳醇酯基双官能基硅油，并和碱性水解的效果比较。
The modified silicone was hydrolysed by toluene-p-sulfonic acid, and the hydrolysis ratios in acid and base were compared.
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27. 沥青基原油含较高比例的非烃组分，如氮、硫、氧的化合物。
An asphalt-base crude is one containing a relatively high proportion of nonhydrocarbon constituents such as nitrogen, sulfur, and oxygen compounds.
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28. 有效的降凝剂基本都具有长烃链和极性基的聚合物。
Almost all effective depressants contain long hydrocarbon chain and polar polymer.
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29. 卤原子作为炔烃三键活化基团和定位基，炔烃三键发生亲电加成反应；
This type of reaction has signicant advantages, the alkyne proceeds the coupling reaction with the halogen atom as the leaving group.
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30. 卤原子作为炔烃三键活化基团和定位基，炔烃三键发生亲电加成反应；
This type of reaction has signicant advantages, the alkyne proceeds the coupling reaction with the halogen atom as the leaving group.
