乙酰氨基

N-（3-Amino-4-methoxyphenyl）acetamide is an important intermediate for the production of azo disperse dyes,while it is still produced by reduction with iron powder in industry currently.

摘 要： N-（3-氨基-4-甲氧基苯基）乙酰胺是生产偶氮型分散染料的一类重要中间体。现有的工业生产方法仍全部采用铁粉还原。

A novel Pd／C catalyst with high activity,high selectivity and good stability developed by our group was used for the hydrogenation of N-（3-nitro-4-methoxyphenyl）acetamide into N-（3-amino-4-methoxyphenyl）acetamide in methanol and water,respectively.

笔者开发了一种高效的Pd／C催化剂，分别选用甲醇和水作为反应溶剂，实现了高活性、高选择性和高稳定性地催化加氢制备N-（3-氨基-4-甲氧基苯基）乙酰胺。

Acridine and body is acetone of synthetic pyridine, acetyl, right among its amino phenol, adjacent benzene the product such as 2 phenol, will be " 95 " the market develops a stress.

医药原料及其中间体合成吡啶、乙酰丙酮、对氨基苯酚，邻苯二酚等产品，将是"九五"市场开发重点。

Enzymatic synthesis of cefaclor from 7\|aminodesacetoxymethyl\|3\|chlorocephalosporanic acid (7\|ACCA) and phenylglycine derivatives using penicillin G acylase was studied.

以7-氨基去乙酰氧甲基-3-氯头孢烷酸(7-ACCA)和苯甘氨酸衍生物为底物，利用青霉素酰化酶酶促合成头孢克罗。

The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料，经水解、乙酰化、环碳酸酯化、氧化、脱碳酸酯化、酰化、环氨基甲酸酯化和环合等反应合成目标化合物。

These salts can beprepared on treatment of phosphinimines with trifluoroaceticanhydride. After addition-elimination, triflromethylated β-enaminoesters and β-iminoesters were synthesized by thereaction of the above salts with organozinc reagents.

通过膦亚胺和三氟乙酸酐反应制备了N-三氟乙酰基氨基膦盐，该膦盐和锌试剂发生加成-消除反应后，合成了含有三氟甲基的β-烯胺酯和β-亚胺酯。

In this paper, the synthesis of polyamide acid resin, with 4, 4′-diam-inodiphenyl ether and pyromellitic dianhyride as monomers and dimethylacetamide as solvent, is reported; the preparation of polyimide fiber from PAA resin by dry- spinning method is described; and the effects of various factors of operating conditions upon the mechanical properties of the fiber is discussed.

本文报导了用4，4′—二氨基二苯醚与苯均四酸酐作单体，在N，N′—二甲基乙酰胺溶剂中合成聚酰胺酸树脂，以及用该树脂经干纺法制备纤维和制备过程中各项参数对纤维力学性能的影响。

Evaluation of some Mannich bases of conjugated styryl ketones and related compounds versus the WiDr colon cancer in vitro.

朱志宏，徐秀娟。2，4-二羟基-3-芳氨基甲基苯乙酮和8-乙酰基-3-芳基-3，4-二氢-5-羟基-2H-1，3-苯并噁嗪的合成及其相互转化。

Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.

选用醋酸锌作催化剂，使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h，合成6-甲基-1，3-噁嗪-2，4-二酮，产率达48.8％，较文献报道值高出了33％。

In the first part, a high performance anionexchange chromatography for simultaneous determination of four artificial sweeteners (sodium saccharin, aspartame, sodium cyclamate and acesulfame-K) and citric acid was proposed.

第一部分提出了一种采用高效阴离子交换色谱法同时测定四种人工合成甜味剂（糖精钠、天门冬酰苯丙氨酸甲酯、环己基氨基磺酸钠、乙酰磺胺酸钾）和柠檬酸的新方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。