The protecting benzyl group was removed subsequently by catalytic hydrogenation to give poly ( 5-hydroxymethyl-1,4-dioxan-2-one)( PHDON) with pendant hydroxyl groups. The polymers obtained were characterized by FTIR, 1H NMR, 13C NMR and GPC.

  • 通过催化氢化去除苄基保护基得到聚(5-羟甲基-1,4-二氧六环-2-酮)(PHDON),并用FTIR、1H NMR、13c NMR和GPC等方法对聚合物进行了表征。
  • 来源:互联网摘选更新时间:2025-01-20 11:54:07

  • 重点词汇
  • GPCabbr.gel permeation chromatography 凝胶渗透色谱法;
  • andconj. 和,与;而且;于是,然后;因此;
  • NMRabbr.nuclear magnetic resonance 核磁共振;
  • hydrogenationn.加氢,氢化(作用);
  • withprep. 具有;和;用;有;以;跟;同;带有;使用;和…在一起;借;与…对立;关于;包括;因为;由于;与…方向一致;由…持有;为…工作;虽然;作为…的成员,为…所雇用;具有,有,带有;在…身上,在…身边;由于,因;在…那里,在…看来
  • benzyl group苯甲基,苄基;
  • to give给出;给予
  • groupsn.组( group的名词复数 );群;小型流行音乐演奏组;集团;
  • characterizedadj.[医]具有特征的;
  • obtainedv.获得( obtain的过去式和过去分词 );买到;(规则、制度、习俗等)存在;流行;
  • polymersn.<化>聚合物(体)( polymer的名词复数 );
  • 相关例句
1、

The material with benzyl group as the linker shows higher catalytic activity and enantioselectivity than the material with propyl group as the linker, which is mainly due to the spacial rigidity and electron-withdrawing ability of the benzyl group.

研究表明以苄基作为环己二胺联结链的材料的催化活性和光学选择性高于相应的以丙基为联结链所得的材料,这主要归因于苄基的空间刚性和较强的吸电子性质。

互联网摘选

2、

Using sodium cinnamate and benzyl chloride as raw material, diethylamine as catalyst, benzyl cinnamate is synthesized directly under normal pressure and microwave irradiation. The effects of amount of catalyst, power and time of microwave irradiation on yield are studied.

以肉桂酸钠和氯化苄为原料,二乙胺作催化剂,采用微波辐射技术,在常压下直接合成肉桂酸苄酯,考查了催化剂用量、微波辐射功率和辐射时间对酯产率的影响。

互联网摘选

5、

The result shows that, hexadecyl trimethyl ammonium chloride is an effective catalyst and under the optimal condition, 86.0% yield of benzyl cinnamate can be obtained.

实验结果表明,十六烷基三甲基氯化铵是一种有效的催化剂,在最佳反应条件下,产物收率可达86.0%。

互联网摘选

6、

The result shows that tetrabutylammonium bromide was an effective catalyst and the optimum conditions of preparation were determined with yield of benzyl cinnamate 85.3%.

实验结果表明:四丁基溴化铵是一个有效的催化剂,在最适宜的条件下,产物收率可达85.3%。

互联网摘选

7、

Microwave assisted synthesis of benzyl cinnamate catalyzed by NKC-9 macroporous resin

微波协同NKC-9大孔树脂催化合成肉桂酸苄酯

互联网摘选

8、

New process for synthesis of benzyl cinnamate

肉桂酸苄酯的合成新工艺

互联网摘选

9、

This experiment filtrates the benzyl penicillin strain with high yield by mutagenesis the benzyl penicillin strain No. 232 which available and used for the manufacture.

本试验通过用化学诱变剂对现有青霉素生产菌株232~进行诱变育种,筛选高产菌株。

互联网摘选

10、

Treatment with benzyl-penicillin are effective. Mutagenesis breeding of benzyl penicillin strain

青霉素治疗有效,未发现不良反应。青霉素产生菌的诱变育种

互联网摘选

11、

Benzyl penicillin potassium and other twenty-four antibiotic drugs were recognized using neural networks.

运用神经网络识别青霉素钾等24种抗生素药物的红外光谱。

互联网摘选

12、

This paper described the mechanisms of synthesis of benzyl acetate by tetranbutylammonium bromide in the presence of phase transfer catalyst, and such factors as temperature, time are also discussed.

该文描述了相转移催化剂存在时合成醋酸苄酯的机理,对反应温度、反应时间等因素也进行了讨论。

互联网摘选

13、

Benzyl Triphenyl Phosphonium Bromide;

苄基三苯基溴化磷;

互联网摘选

15、

The reaction of tosylate or benzyl bromide containing stopper with 4,4 ′-bipyridine was carried out under solvent-free.

通过固相熔融的方法,使4,4′-联吡啶与磺酸酯或苄溴进行反应。

互联网摘选

16、

Penicillin G potassium salt(ⅰ) was reacted with p-nitro benzyl bromide to produce the 4-nitrobenzyl ester of penicillin G acid(ⅱ).

以青霉素G钾盐Ⅰ为原料,与对硝基溴化苄反应生成青霉素G的对硝基苄酯Ⅱ。

互联网摘选

17、

Benzoyl cyanide was synthesized by the reaction of sodium cyanide with benzoyl chloride in a polar compounds as a catalyst with the yield of 72%.

在催化剂存在下,以固体氰化钠和苯甲酰氯为原料合成苯甲酰氰,研究了反应条件对收率的影响。优化条件下收率达72%(以苯甲酰氯计)。

互联网摘选

18、

The chloro group on benzene was shown to lower the biodegradability. STUDY ON THE THERMOKINETICS FOR NUCLEOPHILIC SUBSTITUTION REACTIONS OF BENZOYL CHLORIDE

苯环上氯取代会降低化合物的生物可降解性苯甲酰氯亲核取代反应的热动力学研究

互联网摘选

19、

The reaction of benzotrichloride and chloroacetic acid to form chloroacetyl chloride and benzoyl chloride in the presence of catalyst was studied.

研究了三氯甲苯和氯乙酸在催化剂存在下反应生成氯乙酰氯和苯甲酰氯的工艺条件。

互联网摘选

20、

The title compound has been prepared from the reaction of fluorescein and benzoyl chloride. Its crystal and molecular structure is determined by single crystal X-ray diffraction.

以荧光素和苯甲酰氯为原料制备了荧光素二苯甲酰酯,并用X射线单晶衍射法测定了晶体和分子结构。

互联网摘选

  • 今日热词
  • 热门搜索

美加网英语词典(dict.tjqzz.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:(如需回复请填写联系方式)
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈