Seven chiral phase-transfer catalysts, among which three have not been reported so far, have been prepared and applied to the asymmetric alkylation of α-isopropyl benzyl cyanide and α-isopropyl-p-chlorobenzyl cyanide.

  • 本文报道了用七种手性相转移催化剂(其中三种未见文献报道)催化氯化苄或溴丁烷对α-异丙基对氯苯乙腈或α-异丙基苯乙腈的不对称烷基化反应。
  • 来源:互联网摘选更新时间:2025-01-20 11:54:07

  • 重点词汇
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • beenv.用来表示某人或某物即主语本身,用来表示某人或某物属于某一群体或有某种性质( be的过去分词 );在,存在;不受干扰;去过了;be的过去分词;
  • benzyl cyanide苄基氰,苯乙腈;
  • Asymmetricadj.不对称的,不匀称的;<逻>非对称的;
  • chiraladj.手(征)性的;手征;
  • have not冇;未;未有;未尝;
  • amongprep. (表示牵涉)经过;(表示位置)处在…中;(表示范围)在…之内;(表示所属)为…所特有;
  • applied to施加;
  • preparedadj.有所准备的;愿意的;事先做好的;
  • catalystsn.<化>催化剂( catalyst的名词复数 );触媒;促进因素;有感染力的人;
  • sevennum.七;七个;第七;
  • ofprep. 关于;属于…的;由…制成;
  • 相关例句
1、

This is a generally known method for obtaining phenylnitromethane from benzyl cyanide. Nitrous esters can react with alkyl peroxides to yield alkyl nitrates.

从苯乙腈制取苯基硝基甲烷就用这个方法。亚硝酸酯与过氧化烷基反应,得到烷基硝酸酯。

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2、

Preparation of a New Chiral GC Stationary Phase and Resolution of Benzyl Cyanide Enantiomers

一种新型气相色谱手性固定相的制备及其对苄腈外消旋体的拆分

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3、

Synthesis of New Derivatives of Acyl Aromatic Amine Containing Benzyl Cyanide Parent

含苯乙腈母体的酰替芳胺类衍生物的合成

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4、

Synthesis of Benzyl 4-Hydroxy Benzoate Using Microwave in Dry Process without a Supporter

微波干法无载体合成对羟基苯甲酸苄酯

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5、

Benzyl benzoate was synthesized by the esterification of sodium benzoate and benzyl chloride in the presence of water and triethylamine which was taken as the phase transfer catalyst.

研究了在有水存在下,利用相转移催化剂三乙胺催化苯甲酸钠和氯化苄的酯化反应。

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6、

Benzyl Benzoate was directly synthesized from benzyl chloride and sodium benzoate under the condition of microwave irradiation and phase transfer catalyst without any organic solvent and inorganic carrier.

采用微波辐射反应技术,利用相转移催化剂,将苯甲酸转化为苯甲酸钠后,在无有机溶剂和无机载体的条件下与氯化苄直接酯化合成苯甲酸苄酯。

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7、

The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article.

由苯甲酸钠和氯化苄通过相转移催化法合成了苯(甲)酸苄酯,考察了几种季铵盐类相转移催化剂的亲核取代反应性能。

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8、

There were also traces of benzoic acid and benzyl benzoate detected under some special reaction conditions.

然而,在某些特殊的条件下,也会有微量的苯甲酸以及苯甲酸苄酯检测到。

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9、

The major constituents are: β-Caryophyllene, γ-Cadinene, Benzyl benzoate and α-Humulene.

主要成分为:β-石竹烯,杜松烯,苯甲酸苄酯,α-葎草烯等。

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10、

Benzyl benzoate, an important chemical raw material, is used for a variety of floral essences as styling agent and correction fragrance, and also has many applications in the food flavor.

苯甲酸苄酯(Benzyl benzoate)是一种重要的化工原料,常用作多种花香香精的定型剂和矫香剂,在食用香精中也有较多的应用。

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11、

Study on the aqueous-two-phase extraction separation of Hg(ⅱ) with tetrabutylammonium bromide-( NH_4)_2SO_4 system The Synthesis of Benzyl Formate Using the Catalyst of TBAB

在硫酸铵存在下用四丁基溴化胺-水体系萃取分离汞四丁基溴化铵催化合成甲酸苄酯的研究

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12、

The p-tolyl benzyl ether was synthesized by reaction ofp-cresol and benzyl chloride in95% ethanol as solvent and under microwave irradiation.

以95%的乙醇为溶剂,以氯化苄和对甲苯酚为原料利用微波辐射加热合成对甲苯基苄基醚。

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13、

Phase-transfer catalytic behavior of polystyrene-supported polyethylene glycol benzyl ether

聚合物固载的聚乙二醇苄醚的相转移催化作用

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14、

Study on the Supramolecular Inclusion Complex of Fullerenes with p tert butyl Calixarene Benzyl Ether

球烯与对叔丁基杯[8]芳烃苯醚形成超分子包合物的研究

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15、

Studies of synthesis of 4-Nitrophenyl Benzyl Ether and 2,4-Dinitrophenyl Ethyl Ether

硝基苯基苄醚与2,4-二硝基苯基乙基醚的合成研究

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16、

Studies on Synthesis, Phase Transfer Catalysis and Catalytic Mechanism of Polystyrene-Supported Polyethylene Glycol Benzyl Ether

聚苯乙烯固载化聚乙二醇苄醚的合成、相转移催化及机理研究

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17、

Preparation of p-tolyl benzyl ether by phase transfer catalyst

相转移催化合成对甲苯苄醚

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18、

Benzyl alcohol is the most important aromatic alcohol. Nowadays benzyl alcohol is synthesized by the hydrolysis of benzyl chloride in the presence of alkali, but with almost 10-20% benzyl ether, the by-product.

苯甲醇是最简单的,也是最重要的芳香醇,目前合成苯甲醇主要是通过氯化苄直接碱性水解,但是现有方法的副产物二苄醚含量达到10%~20%。

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19、
20、

Synthesis and application of water soluble polysiloxane containing benzyl cationic group

含苄基阳离子基团的水溶性聚硅氧烷的合成及应用

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