开发了一种通过金( I )催化剂合成2-吡啶酮醇的高效方法。确定了甲磺酸对金催化剂的反应进程的影响。所提出的机制涉及分别源自2-炔丙基氧基吡啶和 2-(but-3-yn-1-yloxy)吡啶的氮的 5- exo-dig和 6 -exo-dig加成的分子内环化产物形成。由金 ( I ) 催化剂和甲磺酸形成的吡啶盐在弱碱性介质(5% Na 2 CO 3水溶液)中发生重排反应,形成N-烯基吡啶酮醇。N使用这种方法可以以中等至极好的收率获得-烯基吡啶酮醇。
开发了一种通过金( I )催化剂合成2-吡啶酮醇的高效方法。确定了甲磺酸对金催化剂的反应进程的影响。所提出的机制涉及分别源自2-炔丙基氧基吡啶和 2-(but-3-yn-1-yloxy)吡啶的氮的 5- exo-dig和 6 -exo-dig加成的分子内环化产物形成。由金 ( I ) 催化剂和甲磺酸形成的吡啶盐在弱碱性介质(5% Na 2 CO 3水溶液)中发生重排反应,形成N-烯基吡啶酮醇。N使用这种方法可以以中等至极好的收率获得-烯基吡啶酮醇。
Triton B–Mediated Efficient and Convenient Alkoxylation of Activated Aryl and Heteroaryl Halides
作者:H. M. Meshram、P. Ramesh Goud、B. Chennakesava Reddy、D. Aravind Kumar
DOI:10.1080/00397910903219518
日期:2010.6.25
simple and convenient one-pot synthesis of aryl alkyl ethers by the alkoxylation of arylhalides with alcohol in the presence of Triton B as a base is described. The procedure is applicable for a variety of aryl and heteroarylhalides, and yields are very good. The use of a nonmetallic base and solvent-free conditions are important features of the reaction.
描述了在 Triton B 作为碱的存在下,通过芳基卤化物与醇的烷氧基化,简单方便地一锅法合成芳基烷基醚。该方法适用于多种芳基和杂芳基卤化物,收率非常好。使用非金属碱和无溶剂条件是反应的重要特征。
[EN] SYMMETRICALLY STRUCTURED QUINAZOLINE DERIVATIVES<br/>[FR] DÉRIVÉS DE QUINAZOLINE À STRUCTURE SYMÉTRIQUE
申请人:HANMI SCIENCE CO LTD
公开号:WO2012169785A9
公开(公告)日:2013-05-23
[EN] The present invention relates to a novel quinazoline derivative and a pharmaceutical composition for preventing or treating cancers, inflammatory diseases, autoimmune diseases, or neurodegenerative disorders comprising same as an active ingredient. [FR] La présente invention concerne un nouveau dérivé de quinazoline et une composition pharmaceutique, le contenant comme substance active, permettant de prévenir ou de traiter les cancers, les maladies inflammatoires, les maladies auto-immunes ou les troubles neurodégénératifs.
One-pot gold(<scp>i</scp>)-catalyzed synthesis of 2-pyridonyl alcohols
作者:Ali Osman Karatavuk
DOI:10.1039/d1ob01950c
日期:——
A highly efficient method for the synthesis of 2-pyridonyl alcohols via gold(I) catalyst was developed. The effect of methanesulfonic acid on the reaction progression with the gold catalyst was determined. The proposed mechanism involves intramolecular cyclization product formation derived from 5-exo-dig and 6-exo-dig addition of the nitrogen for 2-propargyloxypyridine and 2-(but-3-yn-1-yloxy)pyridine
开发了一种通过金( I )催化剂合成2-吡啶酮醇的高效方法。确定了甲磺酸对金催化剂的反应进程的影响。所提出的机制涉及分别源自2-炔丙基氧基吡啶和 2-(but-3-yn-1-yloxy)吡啶的氮的 5- exo-dig和 6 -exo-dig加成的分子内环化产物形成。由金 ( I ) 催化剂和甲磺酸形成的吡啶盐在弱碱性介质(5% Na 2 CO 3水溶液)中发生重排反应,形成N-烯基吡啶酮醇。N使用这种方法可以以中等至极好的收率获得-烯基吡啶酮醇。