A modular 2H-azirine synthesis from ketoximeacetates via Cs2CO3-mediated cyclization has been developed. The reaction utilizes easily available starting materials and provides a general synthetic route to 2,3-diaryl-2H-azirines in good to excellent yields under mild conditions, which is complementary to the conventional approaches for the synthesis of 2H-azirines. A gram-scale reaction was performed
已经开发了由乙酸酮肟通过Cs 2 CO 3介导的环化合成的模块化2 H-叠氮基。该反应利用容易获得的原料,并在温和条件下以良好至优异的产率提供了合成2,3-二芳基-2 H-叠氮基的一般合成路线,这是合成2 H-叠氮基的常规方法的补充。进行了克级反应以证明该合成方法的放大适用性。重要的是,2 H-叠氮基可以有效地转化为各种氮杂杂环。
Silver‐Catalyzed Coupling of Two CH Groups and One‐Pot Synthesis of Tetrasubstituted Furans, Thiophenes, and Pyrroles
作者:Shuai Mao、Xue‐Qing Zhu、Ya‐Ru Gao、Dong‐Dong Guo、Yong‐Qiang Wang
DOI:10.1002/chem.201501410
日期:2015.8.3
Silver‐catalyzedcoupling of twoCHgroups to form 1,4‐diketones have been developed for the first time. The resultant ketones then undergo cyclization to synthesize tetrasubstitutedfurans, thiophenes, and pyrroles from benzyl ketone derivatives in a one‐pot reaction process. This highly‐efficient synthetic method, which utilizes air as the terminal oxidant and readily accessible starting materials
INDANE ESTROGEN RECEPTOR MODULATORS AND USES THEREOF
申请人:Govek Steven P.
公开号:US20130137746A1
公开(公告)日:2013-05-30
Described herein are compounds that are estrogen receptor modulators. Also described are pharmaceutical compositions and medicaments that include the compounds described herein, as well as methods of using such estrogen receptor modulators, alone and in combination with other compounds, for treating diseases or conditions that are mediated or dependent upon estrogen receptors.
Direct synthesis of haloaromatics from nitroarenes <i>via</i> a sequential one-pot Mo-catalyzed reduction/Sandmeyer reaction
作者:Raquel Hernández-Ruiz、Sara Gómez-Gil、María R. Pedrosa、Samuel Suárez-Pantiga、Roberto Sanz
DOI:10.1039/d3ob01187a
日期:——
Herein, we report the directsynthesis of a wide variety of functionalized aromatic bromides, chlorides, iodides, and fluorides from nitroarenes in a sequential one-pot operation. This protocol is based on an air- and moisture-tolerant dioxomolybdenum-catalyzed reduction of nitroaromatics, employing pinacol as a reducing agent, which enables subsequent diazotization and halogenation steps. This methodology