抽象的 描述了 3 H -1,2-苯并氧磷 2-氧化物的合成及其对人碳酸酐酶 (hCA) 亚型 I、II、IX 和 XII 的抑制活性评估。目标化合物是通过商业水杨醛的简明合成获得的,并且对肿瘤相关亚型 hCA IX 和 XII 表现出低至亚微摩尔的抑制水平。所有获得的苯并氧膦 2-氧化物对 hCA IX/XII 的抑制具有显着的选择性,而对脱靶胞质 hCA 亚型 I 和 II 的抑制可能会导致副作用。
new cobalt-catalyzed phenolic OH-assisted C–H functionalization of 2-vinylphenols with allenes to give various 2H-chromenes is described. It is the first time that allenes are used as the coupling partners in the cobalt-catalyzed C–H activation reactions. In most cases, cobalt-catalyzed oxidative annulation of arenes with alkenes or alkynes via C–H activation gave [4 + 2] or [3 + 2] cyclization products
Cp*Co(<scp>iii</scp>)-Catalyzed oxidative [5+2] annulation: regioselective synthesis of 2-aminobenzoxepines <i>via</i> C–H/O–H functionalization of 2-vinylphenols with ynamides
作者:Xiang-Lei Han、Xu-Ge Liu、E Lin、Yunyun Chen、Zhuangzhong Chen、Honggen Wang、Qingjiang Li
DOI:10.1039/c8cc06807k
日期:——
A Cp*Co(III)-catalyzed [5+2] C–H annulation reaction of 2-vinylphenols with ynamides was developed. The reaction led to the efficient synthesis of valuable 2-aminobenzoxepines in high regioselectivity. Mild reaction conditions, good functional group tolerance, and moderate to good yields were observed. The synthetic utility was demonstrated by a gram-scale synthesis and further transformations of the
Synthesis of Substituted Tetrahydrocyclobuta[<i>b</i>]benzofurans by Palladium-Catalyzed Substitution/[2+2] Cycloaddition of Propargylic Carbonates with 2-Vinylphenols
作者:Masahiro Yoshida、Shoko Ohno、Kosuke Namba
DOI:10.1002/anie.201306903
日期:2013.12.16
Radical methods: The title reaction proceeds in the presence of a palladium catalyst to deliver substituted tetrahydrocyclobuta[b]benzofurans in a stereoselective manner (see scheme). A radical mechanism is discussed.
自由基方法:标题反应在钯催化剂的存在下进行,以立体选择性方式递送取代的四氢环丁[ b ]苯并呋喃(参见方案)。讨论了一种根本机制。
A visible light photoredox catalyzed carbon radical-mediated generation of <i>ortho</i>-quinone methides for 2,3-dihydrobenzofuran synthesis
A visible light photoredox-catalyzed carbon radical-mediated strategy for in situ formation of ortho-quinone methides from 2-vinyl phenols towards 2,3-dihydrobenzofuran synthesis is described.