该论文描述了由2-重氮基1,2-二芳基酮与二恶唑酮的反应合成新的1,3,3-triary-1'-甲基螺[氮杂环丁烷-2,3'-二氢吲哚] -2',4-二酮。 3-芳基-1-甲基-2-吲哚满酮。通过令人满意的分析和光谱(IR,1 H NMR和13 C NMR)数据对化合物进行了表征。由2-重氮-1,2-二芳基酮的热分解原位生成的二芳基乙烯酮与偶氮甲碱键优先于羰基反应,导致形成产物。
该论文描述了由2-重氮基1,2-二芳基酮与二恶唑酮的反应合成新的1,3,3-triary-1'-甲基螺[氮杂环丁烷-2,3'-二氢吲哚] -2',4-二酮。 3-芳基-1-甲基-2-吲哚满酮。通过令人满意的分析和光谱(IR,1 H NMR和13 C NMR)数据对化合物进行了表征。由2-重氮-1,2-二芳基酮的热分解原位生成的二芳基乙烯酮与偶氮甲碱键优先于羰基反应,导致形成产物。
Reductive Coupling of Acrylates with Ketones and Ketimines by a Nickel-Catalyzed Transfer-Hydrogenative Strategy
作者:Craig S. Buxton、David C. Blakemore、John F. Bower
DOI:10.1002/anie.201707531
日期:2017.10.23
next cycle where it serves as the reductant for C-C bond formation. This strategy represents a conceptually unique approach to transfer-hydrogenative C-C bond formation, thus providing examples of reductive heterocyclizations where hydrogen embedded within an alcohol leaving group facilitates turnover.
丙烯酸苄酯与活化的酮和亚胺在镍催化下偶联,分别生成γ-丁内酯和内酰胺。内酯化/内酰胺化过程中释放的苯甲醇副产物被传递到下一个循环,在其中充当 CC 键形成的还原剂。该策略代表了一种概念上独特的转移氢化CC键形成方法,从而提供了还原性杂环化的例子,其中氢嵌入醇离去基团中促进周转。
3-Component palladium–indium mediated diastereoselective cascade allylation of imines with allenes and aryl iodidesElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b2/b202940e/
作者:Ian R. Cooper、Ronald Grigg、William S. MacLachlan、Mark Thornton-Pett、Visuvanathar Sridharan
DOI:10.1039/b202940e
日期:2002.6.19
A new palladiumâindium diastereoselective cascade allylation of imines using allenes and aryl iodides is described; N-tosyl and N-aryl homoallyl amines were obtained in moderate to good yields and excellent diastereoselectivity was observed when enantiomerically pure N-tert-butanesulfinyl imines were employed in the cascade.
Gold-Catalyzed Cascade Reaction of Yne-Enones with Iminooxindoles, Access to 3,2′-Pyrrolidinyl-Spirooxindole Derivatives
作者:Yijun Liu、Xiaojiang Shen、Pengyan Zhu、Jiang-miao Hu、Xuanjun Wang、Shulin Ge
DOI:10.1021/acs.orglett.4c01395
日期:2024.6.7
Herein, a gold-catalyzedcascade reaction of yne-enones with iminooxindoles has been developed through a cascade cycloisomerization/(3 + 2) annulation process. This approach provides a straightforward and efficient route for the synthesis of functionalized 3,2′-pyrrolidinyl-spirooxindoles in high reactivity and broad substrate scope with excellent cis-selectivity. Moreover, the subsequent functionalization
The isatin core structure was found to be a novel chemical scaffold in transthyretin (TTR) brillogenesis inhibitor design. Among the series of isatin analogues prepared and tested, the nitro compound 1,3-dihydro3-[(4-nitrophenyl)imino]-2H-indol-2-one (2r) is as potent as triiodophenol, which is one of the most active known TTR inhibitors. The E/Z stereochemistry of these molecules in solution, elucidated by H-1 NMR, does not influence their biological activity. The compounds do not bind to the native tetrameric TTR suggesting that their inhibitory action is independent of the protein binding and stabilization. (C) 2009 Published by Elsevier Ltd.
VARMA R. S.; GARG P. K., J. INDIAN CHEM. SOC., 1981, 58, NO 10, 980-981