Aromatic amines

Xem 1-14 trên 14 kết quả Aromatic amines
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Dermal absorption of aromatic amines in workers with different skin lesions: a report on 4 cases

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  • The heterologous expression of tryptophan trytophylquinone (TTQ)-dependent aromatic amine dehydrogenase (AADH) has been achieved in Paracoccus denitrificans. The aauBEDAgenes andorf-2from the aromatic amine utilization (aau) gene cluster of Alcaligenes faecaliswere placed under the regulatory control of themauFpromoter fromP. denitrificans and introduced intoP. denitrificansusing a broad-host-range vector.

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  • This book has evolved from over a quarter-century of research that concentrated on delineating the aqueous coordination reactions that characterize the vanadium(V) oxidation state. At the beginning of this time period, only a minor amount of research was being done on vanadium aqueous chemistry. However, the basic tenets of 51 V NMR spectroscopy were being elaborated, and some of the influences of ligand properties and coordination geometry on the NMR spectra were being ascertained.

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  • Two derivatives of 2-thioxoquinazolin-4(3H)-one including compounds 3 and 5 were synthesized by cyclization reaction of anthranilic acid with ethyl isothiocyanate and phenyl isothiocyanate, respectively. Eight novel derivatives of 2-thioxoquinazolin-4(3H)-one including compounds (7a-h) were synthesized by cyclization reaction of derivatives of anthranilic acid with aromatic amines and carbon disulfide in potassium hydroxide/methanol. The obtained compounds were structurally determined by IR, MS, 1 H NMR and 13 C NMR analysis method.

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  • Amines are organic derivatives of ammonia with one or more alkyl or aryl groups bonded to the nitrogen atom. As a class, amines include some of the most important biological compounds. Amines serve many functions in living organisms, such as bioregulation, neurotransmission, and defense against predators. This chapter draw and name amines, and use spectral information to determine their structures; compare the basicity of amines with other common bases, and explain how their basicity varies with hybridization, aromaticity, resonance, and induction.

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  • Synthesis of cyclic amide corrosion inhibitors based on C8-C18 fatty acids from Vietnam crude oil is researched. Amides used for this proces are aromatic amides and saturated cyclic amides, namely aniline, antranilic acid, diphenylamine, 1-naphtylamine and xyclohexylamine.

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  • The book updated material on Infrared Spectroscopy and Nuclear Magnetic Resonance of amines, aldehydes/ketones, and carboxylic acid derivatives. Updated information on DNA sequencing (the process of determination of the precise sequence of nucleotides within a DNA molecule) and DNA synthesis.

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  • (BQ) Part 1 book "Chromatographic analysis of environmental and food toxicants" has contents: Polycyclic aromatic hydrocarbons, polychlorinated biphenyls, analysis of nitrosamines in foods and beverages, analysis of foods and related samples for heterocyclic amine mutagens carcinogens, chromatographic analysis of mycotoxins.

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  • (BQ) Part 2 book "Organic chemistry" has contents: Aromatic compounds; reactions of substituted benzenes, carbonyl compounds I; more about oxidation–reduction reactions; more about amines heterocyclic compounds, carbohydrates, catalysis,... and other contents.

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  • The synthesis chapters cover many ways of making each type of molecule starting with simple aromatic and aliphatic compounds with one functional group and progressing to molecules with many functional groups. The strategy chapters cover questions of selectivity, protection, stereochemistry, and develop more advanced thinking via reagents specifically designed for difficult problems.

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  • Compared with hydrophilic drugs not undergoing transport, lipophilic drugs are more rapidly taken up from the blood into hepatocytes and more readily gain access to mixed-function oxidases embedded in sER membranes. For instance, a drug having lipophilicity by virtue of an aromatic substituent (phenyl ring) (B) can be hydroxylated and, thus, become more hydrophilic (Phase I reaction, p. 34). Besides oxidases, sER also contains reductases and glucuronyl transferases. The latter conjugate glucuronic acid with hydroxyl, carboxyl, amine, and amide groups (p.

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  • Prasad et al. Organic and Medicinal Chemistry Letters 2011, 1:4 http://www.orgmedchemlett.

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  • Phân phối : Levodopa xuyên qua hàng rào máu-não nhờ vào hệ vận chuyển có thể trung hòa. Levodopa không gắn kết với protein huyết tương và có thể tích phân phối là 57 lít. Ngược lại levodopa, benserazide không xuyên qua hàng rào máu-não ở liều điều trị. Nó tập trung phần lớn ở thận, phổi, ruột non và gan.

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  • Organic synthesis - The disconnection approach introduces this important technique, to help students to design their own organic syntheses. There are forty chapters: those on the synthesis of given types of molecules alternate with strategy chapters in which the methods just learnt are placed in a wider context.

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