查询词典 piperidine

Functionalized tetrahydropyridine and piperidine ring systems are widely found in biologically active natural products and pharmaceuticals.

四氢吡啶和哌啶环结构是那些有生物活性和药用价值的天然产物中最常见的结构之一。

Triethylamine and piperidine were distilled from CaH2 under argon immediately prior to use.

三乙基氨和哌啶从CaH2被蒸馏了在氩之下立刻在用途之前。

The invention relates to a preparation method of chiral alpha-alkenyl-alpha'-alkyl piperidine and relative N-Cbz derivative and an application.

本发明涉及一种手性α-烯基-α'-烷基哌啶及其N-Cbz衍生物的制备方法和应用。

The details of this route as follows:With the piperidine as catalyst, p-hydroxylbenzaldehyde condensed with thiazolidine-...

同时，本文还对反应过程中产生的5-乙基-2-乙烯基毗啶、5-乙基-2-羟乙基吡啶、5-[(4-羟基苯基)甲基]-2，4-噻唑烷二酮、5-4-

Firstly, we selected the catalyst for piperidine oxidation reaction, and obtained the compound catalyst of silicon tungsten molybdic acid.

首先就哌啶醇催化氧化合成TEMPO反应使用的催化剂进行筛选，得出催化效果显著的硅钨钼酸与乙二胺四乙酸复合催化剂。

In this thesis, we developed a new method to construct 2, 3, 6-trisubstituted piperidines using enantiopure -amino acid derivatives as the starting material and applied them to the synthesis of some piperidine alkaloids which showed interesting physiological activities.

本论文中，我们从非手性原料出发，通过手性胺对、(-不饱和酯的Michael加成来获得光学纯的-氨基酸酯，发展了一种构建2、3、6-三取代哌啶环的方法，并利用这种方法合成了一些具有重要生理活性的生物碱类天然产物。

Methods According to the principle of green synthesis ,with the assistance of microwave irradiation,catalyzed by piperidine,synthesize the four kinds of dimethincyanines with indole nucleus without any solvent.

目的研究吲哚二甲川菁染料的绿色合成及部分染料的紫外-可见光谱性质。

Aim According to the targets of 5-HT transporter and 5-HT2A receptor, a series of N -indolalkyl piperidine derivatives and their analogues were synthesized and tested for their biological activities.

摘要摘 要：目的以5-羟色胺转运体和5-HT2A受体为靶点，设计合成 N -吲哚烷基哌啶类化合物及其类似物，研究它们的体内外生物活性。

Pharmaceutical Industry for the production of Bicyclohexane Piperidine BENZTROPINE Dihydrobrohide, diphenhydramine hydrochloride salt.

医药工业中用于生产双环己哌啶、苯甲托品氢溴酸盐，苯海拉明盐酸盐等。

The effects of different electron donors such as ethyl benzoate diisobutyl phthalate, 2,2,6,6-tetramethyl piperidine and various silanes as internal donor and external donor respectively were investigated.

研究了不同给电子体分别作为内给电子体和外给电子体对MgCl2载体催化剂体系活性和定向性能的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐