CAS: 10201-73-7; 2-Amino-4-Methoxypyridine

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4-甲氧基吡啶-N-氧化物置于4-甲苯磺酸酐,三氟乙酸体系中,用 二氯甲烷 用作溶剂,化学反应 5.5H,反应生成2-氨基-4-甲氧基吡啶
参考文献:合成c8 铁催化的c生成的n9环嘌呤h胺化
标题:合成c8 铁催化的c生成的n9环嘌呤h胺化
摘要:嘌呤简单:基于氧催化的直接催化胺化反应,使用氧作为氧化剂,可以合成取代的嘌呤衍生物(见方案).有趣的是,铁被证明优于铜催化.
Doi:10.1002/chem.201301248

专利信息

专利号:US-3901899-A
优先权日:1973-04-27
标题 :Synthesis of indoles from anilines and intermediates therein
发明人：GASSMAN PAUL G
权利人:UNIV OHIO STATE RES FOUND
摘要:Preparing indoles and intermediates therefor by reacting an Nhaloaniline with a Beta -carbonylic hydrocarbon sulfide to form an azasulfonium halide, reacting the azasulfonium halide with a strong base to form a thio-ether indole derivative, and then reducing the thio-ether indole, e.g. with Raney nickel, to form the indole compound. When an acetal or ketal of the Beta carbonyl hydrocarbon sulfide is used, the azasulfonium salt is treated with a base, and then with an acid to form the thio-ether indole derivative. When an Alpha -ethyl- Beta -carbonylic hydrocarbon sulfide is used, the resulting azosulfonium salt reacts with strong base to form a thio-ether indolenine derivative, which on reduction with Raney nickel or complex metal hydrides yields 3-substituted indoles. The aniline may be an aminopyridine to form an aza-indole compound in the process. The azasulfonium salts and thio-ether indole or thio-ether indolenine derivatives can be isolated and recovered from their respective reaction mixtures. The thio-ether-indole and thio-ether indolenine derivatives are useful as intermediates to make the indoles without the thio-ether group. The indoles are known compounds having a wide variety of uses, e.g., in making perfumes, dyes, amino acids, pharmaceuticals, agricultural chemicals and the like.

专利号:US-3992392-A
优先权日:1973-04-27
标题:Synthesis of indoles from anilines and intermediates therein
发明人：GASSMAN PAUL G
权利人:UNIV OHIO STATE RES FOUND
摘要:Preparing indoles and intermediates therefor by reacting an N-haloaniline with a β-carbonylic hydrocarbon sulfide to form an azasulfonium halide, reacting the azasulfonium halide with a strong base to form a thio-ether indole derivative, and then reducing the thio-ether indole, e.g. with Raney nickel, to form the indole compound. When an acetal or ketal of the β-carbonyl hydrocarbon sulfide is used, the azasulfonium salt is treated with a base, and then with an acid to form the thio-ether indole derivative. When an α-ethyl-β -carbonylic hydrocarbon sulfide is used, the resulting azosulfonium salt reacts with strong base to form a thio-ether indolenine derivative, which on reduction with Raney nickel or complex metal hydrides yields 3-substituted indoles. The aniline may be an aminopyridine to form an aza-indole compound in the process. The azasulfonium salts and thio-ether indole or thio-ether indolenine derivatives can be isolated and recovered from their respective reaction mixtures. The thio-ether-indole and thio-ether indolenine derivatives are useful as intermediates to make the indoles without the thio-ether group. The indoles are known compounds having a wide variety of uses, e.g., in making perfumes, dyes, amino acids, pharmaceuticals, agricultural chemicals and the like.

专利号:CA-1043337-A
优先权日:1973-04-27
标题 :Synthesis of indoles from anilines and intermediates therein

专利号:US-8461107-B2
优先权日:2008-04-28
标题:HCV NS3 protease inhibitors
发明人：LIVERTON NIGEL J; MCCAULEY JOHN A; BUTCHER JOHN W; GILBERT KEVIN F; MCINTYRE CHARLES J; RUDD MICHAEL T
权利人:LIVERTON NIGEL J; MCCAULEY JOHN A; BUTCHER JOHN W; GILBERT KEVIN F; MCINTYRE CHARLES J; RUDD MICHAEL T; MERCK SHARP & DOHME
摘要:The present invention relates to macrocyclic compounds of formula (I) that are useful as inhibitors of the hepatitis C virus (HCV) NS3 protease, their synthesis, and their use for treating or preventing HCV infections.

专利号:EP-2800756-B1
优先权日:2012-01-03
标题:Peptide c alpha-amides, methods for preparing same and uses thereof as precursors of peptide c alpha-thioesters for protein synthesis

专利号:CN-113235116-A
优先权日:2021-05-12
标题 :A kind of electrochemical synthesis method of bromopyridine derivative