acetals
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释义
缩醛；
英英释义
acetal
n.any organic compound formed by adding alcohol molecules to aldehyde molecules
权威例句
Vanillin acetals and sensory stimulant composition containing the sameCyanocarbon Chemistry. IV.1 Dicyanoketene Acetals
Mechanism and catalysis for hydrolysis of acetals, ketals, and ortho esters
Free-radical cyclization of bromo acetals. Use in the construction of bicyclic acetals and lactones
PREPARATION OF FATTY ACID METHYL ESTERS AND DIMETHYLACETALS FROM LIPIDS WITH BORON FLUORIDE--METHANOL
A novel, reductive ring-opening of carbohydrate benzylidene acetals, with unusual regioselectivity
CeCl 3 ·7H 2 O-Promoted highly chemoselective hydrolysis of 1,3-oxathio- and dithioacetals
Protection of hydroxy groups by intramolecular oxidative formation of methoxybenzylidene acetals with DDQ
Trimethylsilyl trifluoromethanesulfonate as a catalyst of the reaction of allyltrimethylsilane and acetals ☆
ChemInform Abstract: One‐Pot Synthesis of Substituted Furans and Pyrroles from Propargylic Dithioacetals. New Annulation Route to H...
1. The effect of polyvinyl acetals on its adhesive strength was investigated.
探讨了聚乙烯醇缩醛的粘接强度的影响。
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2. This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.
本文研究了磺酸化的聚苯乙烯树脂在酯化、酯交换、缩醛或缩酮的合成、醚的合成及（口片）呐重排反应中的应用。
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3. Eight acetals(Ketals) were synthesized under the optimal conditions.
在最佳条件下，合成了八个缩醛（酮）化合物。
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4. The synthetic conditions of acetals and ketals catalyzed by copper sulfate were studied.
研究了硫酸铜催化缩醛（酮）的合成条件，考察了硫酸铜催化剂的使用性能；
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5. This paper discussed three methods of producting vinyl etherspreparation from acetylene , dehydrohalogenation and acetals.
论述了乙烯基醚类化合物的三种主要制备方法乙炔法、脱卤化氢法和缩醛热分解法。
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6. The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.
通过对该合聚物的IR和NMR谱图分析，得知该聚合物含有酯基和酮基的结构单元，以及环缩醛的侧链。
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7. The results revealed that the biodegradability of PVA acetals is inferior to that of the unmodified PVA, and declines as the acetalizing or cross-linking degree increases.
结果表明，PVA缩醛化产物的降解性均明显低于未改性PVA的降解性，并随着缩醛度或交联度的增加而下降。
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8. Catalytic rectification preparation armour acetals technology at present domestic has not been formed mass industrial production, have certain development application value.
催化精馏制备甲缩醛工艺目前国内尚未形成大规模工业化生产，具有一定的开发应用价值。
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9. The invention relates to garland chrysanthemum extract compounds, and a synthesis method and application thereof. The compounds have enol ether-spiro ketal-acetals and unsaturated side chains.
本发明茼蒿素类化合物及其合成方法与应用，该化合物具有烯醇醚-螺环缩酮-缩醛和不饱和侧链。
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10. The yields of other cyclic acetals were between 62.
并在此条件下合成了多种环缩醛，收率62。
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11. Abstract: This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.
文摘：论述了乙烯基醚类化合物的三种主要制备方法乙炔法、 脱卤化氢法和缩醛热分解法。
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12. This paper investigates the catalysis of D-72 strong acid cation exchange resin on the synthesis of acetals, and systematically discusses the influence of reaction factors on the catalysis reaction.
研究了强酸性阳离子交换树脂对缩醛合成反应的催化作用，系统地探讨了各反应因素对反应的影响，研究发现，D-72强酸性阳离子交换树脂具有较高的催化活性，并能重复使用。
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13. The synthesis method is simple and effective, which is a foundation of green synthesis and applications ofα-oxo ketene-acetals chemistry.
该反应操作简单，产率较高，为这类化合物的绿色合成及应用奠定了基础。
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14. The hydroxyl groups can be changed into esters, ethers, acetals and ketals, etc.
最常用的羟基保护基可归纳为三类：酯类、醚类和缩醛或缩酮类。
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15. The preliminary results of bioassay show that some of triazolylbenzoylketene N, S-acetals have plant-regulatory and fungicidal activities.
初步的生物活性测定结果表明：所合成的部分化合物具有抑菌及植物生长调节活性。
www.cjcu.jlu.edu.cn
16. The preliminary results of bioassay show that some of triazolylbenzoylketene N, S-acetals have plant-regulatory and fungicidal activities.
初步的生物活性测定结果表明：所合成的部分化合物具有抑菌及植物生长调节活性。
www.cjcu.jlu.edu.cn
17. This paper discussed three methods of producting vi nyl etherspreparation from acetylene, dehydrohalogenation and acetals. It a lso discussed their advantages and disadvantages.
论述了乙烯基醚类化合物的三种主要制备方法乙炔法、卤化氢法和缩醛热分解法。并对这三种方法的优缺点作了评价。
-- 来源 -- www.ilib.cn
18. an organic compound usually formed as an intermediate product in the preparation of acetals from aldehydes or ketones.
一种有机化合物，通常是用乙醛或酮配制乙缩醛时的中间产物。
-- 来源 -- 汉英 - 翻译参考
acetals
