CAS: 532-02-5; Sodium 2-Naphthalenesulfonate

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532-02-5 6036-00-6 1655-45-4

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CAS号121-18-6 4-氯-3-硝基苯磺酸 | CAS号7439-89-6 铁粉 | CAS号5138-53-4 methyl naphthal... | CAS号532-18-3 2,2-二萘胺 | CAS号91-58-7 β-氯萘 | CAS号91-60-1 2-巯基萘 | CAS号135-19-3 2-萘酚 | CAS号91-20-3 萘 | CAS号5586-15-2 2-萘二硫醚 | CAS号2243-63-2 1,6-Naphthalene... | CAS号66-99-9 2-萘甲醛 | CAS号2459-25-8 2-萘甲酸甲酯 | CAS号3007-91-8 2-萘甲酸乙酯

专利信息

专利号:EP-0196224-B1
优先权日:1985-03-29
标题:Synthesis of inotropic imidazo[4,5-c]pyridine
摘要:The present invention provides a process for preparing 2-[2-methoxy-4-(methylthio)phenyl]-1(3)H-imidazo[4,5-c]pyridine comprising reacting 3,4-diaminopyridine with 2-methoxy-4-methylthiobenzoic acid in the presence of phosphorus oxychloride and pyridine.

专利号:WO-9006913-A1
优先权日:1988-12-14
标 题:Explosion-proof 1-dimethylamino-3-dimethylimino-2-arylprop-1-ene salts, process for their preparation, and their use
发明人：MUELLER INGRID; HEMMERLING WOLFGANG; WINGEN RAINER
权利人:HOECHST AG
摘要:The invention concerns the preparation of explosion-proof trimethine salts which are only slightly soluble in water and have the formula (I), in which: R is an aryl or a heteroaryl group, which may contain one or more substituents, and X is an anion-equivalent of a non-oxidizing acid group which is inert with respect to trimethine cation and forms trimethine salts which are only slightly soluble in water, by formylation of compounds of the formula (II): R-CH2?-COOH, in which: R has the same meaning as in formula (I), under the conditions of the Vilsmeier-Haack reaction, followed by aqueous hydrolysis of the formylation products to form water-soluble primary trimethine salts, and reaction of the water-soluble primary trimethine salts in the aqueous reaction mixture with acids of the formula (III): (H)n?X, in which: X has the same meaning as in formula (I) and n is a number from 1 to 3, or with water-soluble salts of such acids, in at least stoichometric proportions, and separation of the resulting trimethine salts of formula (I) which are only slightly soluble in water. Trimethine salts of formula (I) can be used as intermediates in the synthesis of heterocyclic compounds, particularly pyrimidines and pyridines.

专利号:US-4740599-A
优先权日:1986-10-03
标 题 :Synthesis of alkylsulfinyl substituted 2-phenylimidazo(4,5-c)pyridines
发明人：GOEDDE JANE A; GREENE JAMES M
权利人:LILLY CO ELI
摘要:The present invention provides a process for preparing alkylsulfinyl 2-phenylimidazo[4,5-c]pyridines comprising reacting an N-(3-amino-4-pyridinyl)alkylthiobenzamide with an oxidizing agent in a lower alkanoic acid solvent.

专利号:EP-0196224-A1
优先权日:1985-03-29
标 题 :Synthesis of inotropic imidazo[4,5-c]pyridine

专利号:CA-1295330-C
优先权日:1985-03-29
标题:Synthesis of inotropic imidazo(4,5-c) pyridine

专利号:EP-0266897-A1
优先权日:1986-10-03
标题 :Synthesis of alkylsulfinyl substituted 2-phenylimidazo [4,5-c] pyridines