- 更多网络例句与缩醛化相关的网络例句 [注:此内容来源于网络,仅供参考]
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Secondly,a mixture of acetone and methyl formate was added into the methanol solution of sodium methoxide to prepare sodium formyl acetone by Claisen reaction.
以金属钠为原料,甲醇为溶剂,先制成甲醇钠的饱和甲醇溶液,再滴加丙酮和甲酸甲酯进行Claisen酯缩合制得丁酮烯醇钠,最后在强酸作用下与甲醇进行缩醛化反应合成了4,4-二甲氧基-2-丁酮,过程总收率达到73.1%,纯度98.7%。
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Ethylene glycol glycosides,useful as humectant in cosmetics,were prepared by phosphoric acid-catalyzed acetalization of glucose with ethylene glycol.
在磷酸催化下,由葡萄糖和乙二醇经缩醛化反应制备了乙二醇葡糖苷,可用作化妆品保湿剂。
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In this paper, the acetalization of benzylaldehyde and 1,3-propanediol in the presence of vanadium phosphorus oxide catalyst was studied.
研究了苯甲醛与1,3-丙二醇在钒磷氧催化剂作用下的缩醛化反应,考察了反应时间、醇醛比、催化剂用量、带水剂种类和用量等因素对苯甲醛1,3-丙二醇缩醛收率的影响。
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The acetalization parameters including acetalization time, acetalization temperature,amounts of sulfate and amounts of formaldehyde were investigated.
研究了不同的缩醛化浴配方以及缩醛化条件对胶原蛋白/PVA初生复合纤维中的蛋白质存留率、水中软化点的影响,确定了较合适的缩醛化浴配方及缩醛化条件。
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Studies on Acetalization of Litsea Cubeba Oil with Glycol Catalyzed by Dealuminated USY;3. on the esterification and acetalization reactions was discussed.
通过酯化反应和缩醛化反应,考察了含硅二烃基锡二芳香羧酸酯在有机反应中的催化活性,讨论了催化剂用量、反应时间和溶剂等因素对催化反应的影响。
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A novel β-cyclodextrin graft copolymer was synthesized by immobilizing β-CD onto the linear chain of PVA through acetalization reaction.
利用缩醛化反应将醛基化β环糊精固载到聚乙烯醇大分子链上,合成出了聚乙烯醇固载β环糊精的线性环糊精高分子,其最佳反应条件是反应时间 2h ,温度 70℃,β CD 6 CHO与PVA的质量比小于等于 4∶1。
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Chemical experiments and carbon nuclear magnetic resonance studies showed that there were two addition manners,l,2-and l,4-additions when α-butenal,as an unsaturated aldehyde,conducted an acetalization reaction with polyvinyl alcohol.
化学分析法及碳核磁共振研究表明,作为不饱和醛的α-丁烯醛与聚乙烯醇在水溶液中进行缩醛化时存在着 1,2-加成与1,4-加成两种反应方式。
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METHODS: Mono-6-O-tosyl-β-CD and mono-6-formyl-β-CD were synthesized separately. Silylatedβ-CD was loaded onto polymer chain of PVA by acetalization to produce PVA containingβ-CD linear high polymer.
分别合成单6-对甲基苯磺酰β-环糊精酯和单6-甲酰基β-环糊精,利用缩醛化反应将醛基化β-环糊精固载到聚乙烯醇大分子链上,合成出聚乙烯醇固载β-环糊精的线性环糊精高分子。
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In this paper, we studied the reaction mechanism ofpolyvinyl alcohol acetalizing conjugated olefine aldehyde and thepreparation of granule state of polyvinyl alcohol acetalizingconjugated olefine aldehyde in low temperature.
本文主要研究聚乙烯醇与共轭烯醛的缩醛化反应机理以及低温下颗粒态聚乙烯醇缩共轭烯醛的制备;淀粉与共轭烯醛的反应以及聚乙烯醇与淀粉共混相溶的性质,同时探讨了混合浆液缩共轭烯醛对粘度影响。
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The synthetic condition s of benzaldehyde and glycol acetals by 732#strong acidic ion exchange resin are studied.
研究了苯甲醛与乙二醇在732#强酸性阳离子交换树脂催化下的合成条件,得到了缩醛化反应的最佳合成条件:醛/醇摩尔比为1∶1。
- 更多网络解释与缩醛化相关的网络解释 [注:此内容来源于网络,仅供参考]
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acetimeter:乙酸[比重]计
缩醛树脂 acetal resins | 乙酸[比重]计 acetimeter | 乙酰化[作用] acetylation
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intermittent flame test:间歇火焰试验
"intermittent extrusion","间歇挤压" | "intermittent flame test","间歇火焰试验" | "intermolecular acetalization","分子间缩醛化"
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on the hook:陷入圈套
bred uranium 增殖(生成的)铀 | on the hook 陷入圈套 | mercaptalation 缩硫醛化作用
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acetalization:缩醛化<作用>
"acetaldehydase","乙醛酶" | "acetalization","缩醛化[作用]" | "acetals","缩醛类"
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acetalization:缩醛化
,"acetaldehydase","乙醛酶" | ,"acetalization","缩醛化" | ,"acetals","缩醛类"
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intramolecular acetalization:分子内缩醛化
"intra-intermolecular polymerization","分子内-分子间聚合[反应]" | "intramolecular acetalization","分子内缩醛化" | "intramolecular coupling","分子内偶合"
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intermolecular acetalization:分子间缩醛化
"intermittent flame test","间歇火焰试验" | "intermolecular acetalization","分子间缩醛化" | "intermolecular coupling","分子间偶合"
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enolization:缩醛交换
卤烷基化 Transacetalation | 缩醛交换 Enolization | 烯醇化 Haloform reaction
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Functionalized lipids:功能性脂类
--Plasmalogen 缩醛磷脂 | --Functionalized lipids 功能性脂类 | --Biotinylated lipids 生物素酰化脂质
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Aromatic Aldehydes:十六烷基三甲基溴化铵
醛酮缩合反应:condensation of aldehydes or ketones | 十六烷基三甲基溴化铵:aromatic aldehydes | 中介机匣:intermediate case