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芳香化合物

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The aromatic aldehyde compounds are a kind of fine chemicals and have the very broad market prospect.

芳香族醛类化合物是非常重要的一类精细化学品,具有很广阔的市场前景。

The result indicates that those four resuscitation-inducing aromatic herbs mainly contain volatile oil ,and all contain alicyclic compounds; the volatile oil of Borneolum Syntheticum and Styrax both contain Sesquiterpenes of caryophyllene; as resin herbs , Styrax and Benzoinum both contain vanillin, resin ester and balsamic acid .

结果表明,四味芳香开窍药主含挥发油,均含有脂环化合物,并存在一些共有成分,如龙脑冰片与苏合香挥发油中均含有倍半萜类成分石竹烯;苏合香和安息香皆为树脂类中药,两者均含有香荚兰醛成分,尚含树脂酯,香脂酸等。

Results show that there is some aromaticity in the ring of pyrazole compounds, also there is some linear relationship between total energy, density and the number of amine groups respectively. Calculated detonation velocities of these compounds are more than 8.0 kms^(-1), which indicate that these compounds are very good potential energetic materials.

结果表明:吡唑环上有一定的芳香性特征;理论计算得到部分化合物的总能量和密度与NH2原子个数都有较好的线性关系;大多数化合物的爆速在8.0 kms^(-1)以上。

The largest chemical shifts were observed for the proton 1.48 ppm adjacent to the central pyridinium ring and para-protons 1.47 ppm with respect to the nitrogen of pyridinium.

在最终的亲核加成化合物2-F的芳香族区中的这些化学位移与9,10二氢-9-甲氧基-9-(4甲氧基苯基)-10-甲基吖啶的对应物是一致的,17b 这被证明是与过量的MeOH形成的9-苯基吖啶盐的加成化合物(支持信息中的图S7)。

Organic compounds used as solvents include aromatic compounds and other hydrocarbon s, alcohols, esters, ethers, ketones, amines, and nitrated and halogenated hydrocarbon s.

有机化合物作为溶剂的有芳香族化合物及其它烃类、醇、酯、醚、酮、胺,还有硝化与氯化的烃类。

Organic compounds used as solvents include aromatic compounds and other hydrocarbons, alcohols, esters, ethers, ketones, amines, and nitrated and halogenated hydrocarbons.

有机化合物作为溶剂的有芳香族化合物及其它烃类、醇、酯、醚、酮、胺,还有硝化与氯化的烃类。

In general, they are synthesized by using chemistry oxidant to oxidize methyl group of aromatic compound into the aldehyde group.

其生产方法一般采用化学氧化剂氧化甲基化合物的方法,即采用化学氧化剂氧化甲基化合物得到芳香族醛类。

Chinensis by the methods of column chromatography (normal and reversed phase silica gel, Sephadex LH-20), preparative TLC and HPLC. On the basis of spectroscopic methods including IR, ESI-MS, 1-D and 2-D NMR, forty eight of them were identified as seventeen flavonoids, seventeen tritepenoids, one cumarin, five steroids and some benzene derivative etc.

中药射干为射干植物的干燥根茎,从中共分离出53个化合物,通过红外、质谱及核磁共振等波谱方法鉴定了包括12个新化合物在内的48个,结构类型分别属于iridal型三萜及其新颖的二聚体、异黄酮、黄酮及黄酮醇、香豆素、甾体、芳香酸和脂肪酸及其甘油酯等。

For the first three months of pregnancy, women should try to avoid perming hair, perming agents due to the nitro-containing compounds and alkaline hydrogen peroxide; especially hair dyes containing nitro-, amino-aromatic compounds, may affect fetal development, resulting in severe fetal deficiency occurred.

对于怀孕头三个月的妇女,应尽量避免烫发染发,因烫发剂中含碱性的硝基化合物和过氧化氢;特别是染发剂含有硝基、氨基的芳香族化合物,会影响胎儿的发育,严重的导致胎儿发生缺陷症。

Employing high-dilute method and 5-fold excess amine prepared two new "two-armed" acyclic diamine intermediates I_a and I_b, which are also intermediates of synthesizing microcyclic compounds, and eight aromatic Schiff bases, II_, were synthesized from reaction of I_a or I_b condensing with different aromatic aldehydes. Their composition and structure were characterized by Elemental analysis, IR, UV-Vis, LIF,~1HNMR and MS. The hydrogen bond interactions and MS fragmental patterns were also discussed.3. Several novel transition metal complexes using II_a as ligand were synthesized and identified by Elemental analysis, IR, UV-Vis,~1HNMR and molar conductivity.

1,采用高度稀释及胺过量五倍的方法合成了两个具有吡啶双酰胺臂的非环二胺Ⅰ_a和Ⅰ_b,并以它们为中间体进一步合成了八个芳香席夫碱Ⅱ_a-Ⅱ_h,通过元素分析及各种波谱测试鉴定了它们的组成与结构,对化合物的UV-Vis、LIF、IR、~1HNMR及MS进行了较为详细的讨论,还探讨了席夫碱的氢键相互作用及质谱裂解方式; 2,以席夫碱Ⅱ_a为配体合成了几个新型的过渡金属配合物,并通过元素分析、UV-Vis、IR、~1HNMR、摩尔电导及DTA—TG对其进行了表征,讨论了化合物的配位情况及配体在配位中的脱质子行为。

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随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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