氨基氮

Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1，2，4-三氮唑，进一步经过亚胺中间体并与α，β-不饱和酸酯作用后，中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

Enaminones are also valuable precursors for α-iodol enaminones, 3-amino sugar derivatives, azo-compounds,β-aminoketone, as well as tetrahydropentalenes, tetrahydroindenes, and hexahydroazulenes.

烯胺酮类化合物同时也是α-碘代烯胺酮类化合物、3-氨基糖衍生物类化合物、氮杂化合物、β-氨基衍生物类化合物和四氢并环戊二烯类化合物和四氢茚类化合物的重要前体。

The B3LYP/6-31G calculations on the four complexes show that the largest interaction energy is-13.98 kJmol^(-1) in the complex composed of HMX and hexaazacalix [3]-p-triarene [3]-2-amido-1, 3, 5-triazine. Results show that intermolecular interaction energies of azacalix [6] arenes with substituted groups are stronger than that without substituted groups, and intermolecular interaction energies of azacalix [6] arenes with amido groups are stronger than that with nitryl groups.

研究发现分子间相互作用能最大的复合物是六氮杂杯[3]-对－三芳烃[3]-2-氨基－1，3，5-三嗪与HMX所形成的复合物，最大相互作用能为－13.98 kJmol^(-1)；而且带有取代基的复合物的相互作用能大于没有带取代基的复合物，带有氨基取代基的复合物的相互作用能大于带有硝基取代基的复合物。

Benzyloxy benzoyldimethylsulfoxide was prepared by the reaction of ethyl 4-benzyloxybenzoate and dimethyl sulfoxide in the presence of sodium hydride, followed by Pummerer reaction with concentrated hydrochloric acid to afford eo-hydroxy-co-thio-methyl-(4/-benzyloxy) acetophenone, which reacted with urea, thiosemicarbazide, semicarbazide hydrochloride and o-phenylenediamine to give imidazolidine-2,4-dione, l,2,4-triazine-3- one and quinoxaline derivatives, respectively.

本文用4-苄氧基苯甲酸乙酯和二甲亚砜为原料，在氢化钠存在下反应，合成了(4′-苄氧基)-苯甲酰基-二甲亚砜。研究了该亚砜在浓盐酸的存在下发生的Pummerer重排反应，用重排产物ω-羟基-ω-甲硫基-(4′-苄氧基)-苯乙酮分别与尿素、氨基脲、氨基硫脲和邻苯二胺反应合成了2，4-咪唑啉-二酮、1，2，4-三嗪-3-酮、喹喔啉等含氮杂环化合物。

MethodsAfter acate liver injury model was induced by carbon tetrachloride (CCl4), mice were administrated intragastrically with Hypericum japonicum.The serum ALT, AST, SOD, NO, TNF-α, IL-6 were determined and pathological change of liver was observed.

方法以四氯化碳（CCl4）制备小鼠急性肝损伤的模型，田基黄水煎剂灌胃，检测小鼠血清中的丙氨酸氨基转移酶、天冬氨酸氨基转移酶、超氧化物歧化酶活力以及一氧化氮、肿瘤坏死因子-α、白介素-6的含量，观察肝组织的病理损伤程度。

With the aim of enhancing the nonlinear optical property of poly, poly[(thiophene-2,5-diyl)p-(N,N-dimethylamino) azobenzylidene] is prepared from 4-aldehyde-4'-dimethylamino azobenzene and thiophene through condensation polymerization reaction.

为了提高聚噻吩甲烯的非线性光学性能，通过4-醛基-4'-二甲胺基偶氮苯和噻吩的缩聚反应，合成了聚噻吩对二甲氨基偶氮苯甲烷，再用PTDMAAB与四氯苯醌发生脱氢反应合成了侧链含偶氮的聚噻吩甲烯。

Amino-6-nitrobenzodifuroxan was prepared through a three-step reaction from starting material 3, 5-dinitrobenzoic acid:(1)3, 5-dinitroaniline (1) was synthesized from the reaction of DNBA and hydrazoic acid in inert solvent 1, 2-dichioroethane through Schmidt rearrangement with yield of 89.6%;(2) 1 was subjected to nitration to prepare pentanitroaniline (2) with yield of 51.1%;(3) The title compound was prepared from 2 and sodium azide in acetic acid through denitrogenation and then Schmidt rearrangement with yield of 86.8%, m.p.204℃～206℃.

以3，5-二硝基苯甲酸为原料经过3步反应合成了7-氨基6-硝基苯并二氧化吠咱：第1步反应，在二氯乙烷惰性溶剂中，DNBA与叠氮酸反应并发生Schmidt重排反应生成3，5-二硝基苯胺(1)，产率89.6%；第2步反应，1在含100%硫酸的硝硫混酸中硝化生成五硝基苯胺(2)，产率51.1%；第3步反应，2与叠氮酸反应，不经分离直接进行热解脱氮、Schmidt重排反应，得到目标化合物， m.p.204℃~ 206℃，产率86.8%。

We studied some new colour reactions for the first time. Amino-Gacid chlorophosphonazo, sulphonic acid amide chlorophosphonazo and phippuric acid chlorophosphonazo were used to establish flow injection spectrophotometric methods of Pd in ores.

我们首次探索了一些前人未研究过的新显色体系，使用氨基G酸偶氮氯膦，磺胺偶氮氯膦，对马尿酸偶氮氯膦建立了测定矿石中Pd的流动注射分光光度法。

Nearly all high-molecular-weight dissolved organic nitrogen and part of the particulate organic nitrogen in deep sea are present in hydrolysis-resistant amides, and to date, their biodegradation mechanisms have yet to be resolved.

深海中的高分子量有机氮都是难被化学水解和生物降解的氨基化合物，即蛋白质以颗粒有机氮和溶解有机氮的形式存在。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。