1)4-dimethylaminopyridine4-二甲氨基吡啶
1.An improved process for producing 4-dimethylaminopyridine(4-DMAP)from pyridinyl-pyridinium was provided.对双吡啶盐法合成4-二甲氨基吡啶(4-DMAP)工艺进行了改进,回收了未反应的原料吡啶;同时改进了精制工艺,用石油醚-苯进行结晶代替高真空蒸馏,简化了工艺,有利于工业化生产。
英文短句/例句
1.‘One Pot’Method for Green Synthesis of 4-Dimethylaminopyridine4-二甲氨基吡啶的一锅法绿色合成
2.4-Dimethylaminopyridine-Catalyzed Benzannulation Reaction of Aromatic 1,3-Diketones with 3-Butyn-2-one4-二甲氨基吡啶催化的1,3-二酮与3-丁炔-2-酮的苯环化反应
3.4-dimethylamino-pyridine,a kind of high acylating catalyst,is synthesized in two steps with pyri-dine as raw material, and ethyl acetate as nontoxic solvent.以吡啶为原料,乙酸乙酯做溶剂,两步法合成高效酰化催化剂4-二甲氨基吡啶.
4.Dinitration of 2,6-Diamino(4-amino)pyridines2,6-二氨基(4-氨基)吡啶的二硝化反应
5.Synthesis of 2, 6-Bis(3-methyl-1-Hpyrazol-1-yl)-4-aminopyridine2，6-双（3-甲基-1H-吡唑基）-4-氨基吡啶的合成
6.Synthesis of N, N-bis(3-aminopropyl)-4- Aminomethyl Pyridine and Research on the Schiff Base ComplexesN，N-二（3-氨丙基）-4-吡啶甲胺的合成和席夫碱配合物的研究
7.Pyrolysis Study of Pyrrole, Pyridine and 4-methyl Pyridine Compounds吡咯、吡啶及4-甲基吡啶的热解研究
8.Separation of 3-Picoline and 4-Picoline;3-甲基吡啶与4-甲基吡啶的分离研究
9.diindolyl-4-phridyl methane二吲哚-4-吡啶甲烷
10.The Crystal Structure of 3,5-di-Br-PADAT5-[(3,5-二溴-2-吡啶)偶氮]-2,4-二氨基甲苯的晶体结构
11.litudinium molybdophosphate二甲基吡啶 钼磷酸盐
12.Synthesis of 2-chloro-5-nitropyridine and 4-amino-2-chloropyridine2-氯-5-硝基吡啶和4-氨基-2-氯吡啶的合成研究
13.Synthesis of pyridin-ylmethyl 3,5-bis(pyridin-ylmethoxy)benzoate3,5-二(吡啶-甲氧基)苯甲酸吡啶-甲基酯的合成
14.Recognition of amino acids and anions by a Zn(Ⅱ)-methylazacalix[4]pyridine complex基于Zn(Ⅱ)-甲基氮杂杯[4]吡啶复合物的氨基酸和阴离子识别
15.Synthesis of 3-Cyanopyridine from Ammoxidation of 3-Picoline over V_2O_5/TiO_2 Catalysts;3-甲基吡啶氨氧化制3-氰基吡啶催化剂研究
16.Synthesis and Characterization of [Bis(2-pyridyl)-methanediol·iminodiacetato-nickle(Ⅱ)] Dihydrate Complex二(2-吡啶基)甲二醇·亚氨基二乙酸根合镍(Ⅱ)配合物的合成与表征
17.Axial Coordination and Energy Transfer of 4-aminomethylpyridineand Pyrenylaldehyde Schiff(PPY);4-氨甲基吡啶缩芘醛Schiff碱与ZnTPP轴向配合和能量转移
18.Complexation reaction of Pd(Ⅱ)with 2-(5-nitro-2-pyridylazo)-5-dimethylamino benzoic acid2-(5-硝基-2-吡啶偶氮)-5-二甲氨基苯甲酸与钯(Ⅱ)显色反应的研究
相关短句/例句
DMAP4-二甲氨基吡啶
1.The monomenthyl succinate was synthesized by a direct reaction between succinic anhydride and menthol with DMAP as the catalyst in chloroform with a yield of 92.薄荷醇和琥珀酸酐在4-二甲氨基吡啶的催化作用下,以CHCl3为溶剂,合成凉味剂琥珀酸单薄荷酯。
2.DCC was used as dehydrating agent and DMAP was used as catalyst for the synthesis of 9′-acryloxyspiroox- azine from 9′-hydroxyspirooxazine and acrylic acid in anhydrous diethyl ether.用N,N′-二环己基碳二酰亚胺(DCC)为脱水剂,4-二甲氨基吡啶(DMAP)为催化剂合成了9′-丙烯酰氧基吲哚啉螺萘并噁嗪衍生物。
3)4-Diaminomethylpyridine4-二氨甲基吡啶
4)4-Dimethylaminopyridine (4-DMAP)4-二甲基氨基吡啶(4-DMAP)
5)Dimethylaminopyridine4二甲基氨基吡啶
6)4-(N,N-Dimethylamino)pyridine4-(N,N-二甲基氨基)吡啶
延伸阅读
4-二甲氨基吡啶分子式：C7H10N2分子量：122.17CAS号：1122-58-3性质：淡黄色晶体。熔点112-114℃。易溶于甲醇、苯、氯仿，难溶于水、环己烷。制备方法：将4-羟基吡啶、二甲胺盐酸盐和六甲基磷酰三胺在220℃加热4h。生成的固化反应物用水漂洗，加盐酸在100℃水解1h。冷至室温，搅拌下加入氢氧化钠水溶液，然后用氯仿提取。提取液在用硫酸镁干燥后蒸除溶剂，剩余物用沸腾的己烷提取，热滤，浓缩，结晶，得4-二甲氨基吡啶。收率约55%。用途：酰化反应的高效催化剂。
