Diastereoselective Construction of 3-Aminooxindoles with Adjacent Stereocenters: Stereocontrolled Addition of γ-Substituted Allylindiums to Isatin Ketimines
作者:Nayyar Ahmad Aslam、Srinivasarao Arulananda Babu、Soniya Rani、Shivam Mahajan、Jagmohan Solanki、Makoto Yasuda、Akio Baba
DOI:10.1002/ejoc.201500340
日期:2015.7
The diastereoselectiveconstruction of 3-allyl-3-aminooxindoles that have two adjacentstereocenters has been achieved by the In-promoted Barbier-type addition of γ-substituted allylic halides to the C=N bond of isatinketimines. The reactions of cinnamyl-, crotyl-, and geranylindium compounds with isatinketimines proceeded in either aqueous or alcohol solution. The addition of a cyclohexenylindium
Reactions of α-diazoketones with indolinone imines: Synthesis of new 1,3,3-triaryl-1′-methylspiro[azetidine-2,3′-indoline]-2′,4-diones
作者:Girija S. Singh、Boycie J. Mmolotsi
DOI:10.1002/jhet.5570430636
日期:2006.11
The paper describes the synthesis of new 1,3,3-triary-1′-methylspiro[azetidine-2,3′-indoline]-2′,4-diones from reaction of the 2-diazo-1,2-diarylethanones with 3-arylimino-1-methyl-2-indolinones. The compounds have been characterized by satisfactory analytical and spectral (IR, 1H NMR and 13C NMR) data. The diarylketenes, generated in situ from thermal decomposition of the 2-diazo-1,2-diarylethanones
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。
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
Mass spectral fragmentation and rearrangement of isatin derivatives
作者:Norton P. Peet、Robert J. Barbuch
DOI:10.1002/oms.1210190405
日期:1984.4
AbstractMass spectral fragmentation pathways were formulated for 1‐alkylisatins, 1‐alkyl‐3‐arylimino‐2‐indolinones and 3‐arylimino‐2‐indolinons bearing no substituent at the 1‐position. Deuterium‐labelled and 13C‐labelled compounds were utilized in this study. An interesting rearrangement of the 1‐alkyl compounds, in which the 1‐alkyl substituent is incorporated into a fulvene ion, was established.