作者:Baihua Ye、Jie Zhao、Ke Zhao、Jeffrey M. McKenna、F. Dean Toste
DOI:10.1021/jacs.8b05962
日期:2018.7.5
C(sp3)-H bond functionalization has emerged as a robust tool enabling rapid construction of molecular complexity from simple building blocks, and the development of asymmetric versions of this reaction creates a powerful methodology to accessenantiopure sp3-rich materials. Herein, we report the stereoselective functionalization of C(sp3)-H bonds of cyclic ethers employing a photochemically active
Reactions of 1-Arylbenziodoxolones with Azide Anion: Experimental and Computational Study of Substituent Effects
作者:Mekhman S. Yusubov、Natalia S. Soldatova、Pavel S. Postnikov、Rashid R. Valiev、Dmitry Y. Svitich、Roza Y. Yusubova、Akira Yoshimura、Thomas Wirth、Viktor V. Zhdankin
DOI:10.1002/ejoc.201701595
日期:2018.2.7
their reactivity with azide anion nucleophile was investigated. It was found that independent on the presence of substituents, all reactions of 1-arylbenziodoxolones proceed as nucleophilic substitution of the iodonium leaving group in the electron-deficient benziodoxolone benzene ring. The presence of bulky substituents in the ortho-position of the aryl ring slowers the reaction, while the presence of
Synthesis of a Range of Iodine(III) Compounds Directly from Iodoarenes
作者:Eleanor A. Merritt、Berit Olofsson
DOI:10.1002/ejoc.201100360
日期:2011.7
The first direct synthesis of an alkynyl(phenyl)iodonium salt from iodobenzene and an unprotected alkyne is described. The synthesis of the corresponding alkenyl(phenyl)iodonium salt is achieved from the TMS-alkyne, simply by means of changing the solvent. The one-pot synthesis of 1-arylbenziodoxolones and other iodine(III) compoundsfromiodine(I) precursors is also presented.
1-Phenyl-1,2-benziodoxol-3-(1<i>H</i>
)-one as Synthon for Phthalide Synthesis through Pd-Free, Base-Free, Sonogashira-Type Coupling Cyclization Reaction
作者:Ahmad A. Almasalma、Esteban Mejía
DOI:10.1002/ejoc.201700940
日期:2018.1.17
heterocycles have found broad application as atom-transfer reagents for organic synthesis. Among them, 1-Phenyl-1,2-benziodoxol-3-(1H)-one is known as a traditional benzyne precursor, but no further synthetic applications have been reported. Herein, we report the first synthetic application of 1-phenylbenzidoxole to the synthesis of Phthalides using only CuI as catalyst. High selectivity and yield were achieved
高价碘 (III) 五元杂环已被广泛用作有机合成的原子转移试剂。其中,1-Phenyl-1,2-benziodoxol-3-(1H)-one 被称为传统的苄前体,但没有进一步的合成应用报道。在此,我们报告了仅使用 CuI 作为催化剂的 1-苯基苯并氧杂环戊烷在邻苯二甲酸酯合成中的首次合成应用。在温和的反应条件下实现了高选择性和高产率,并具有良好的官能团耐受性。在我们的研究过程中,研究了不同反应条件下不同 CuI 和 CuII 催化剂的效率。离去基团的性质、底物上的取代基和温度对产率和选择性都起着重要作用。而且,
Preparation and X-ray Structural Study of 1-Arylbenziodoxolones
作者:Mekhman S. Yusubov、Roza Y. Yusubova、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1021/jo400212u
日期:2013.4.19
Various 1-arylbenziodoxolones can be conveniently prepared from 2-iodobenzoic acid and arenes by a one-potprocedureusing Oxone (2KHSO5·KHSO4·K2SO4) as an inexpensive and environmentally safe oxidant. This procedure is also applicable for the synthesis of the 7-methylbenziodoxolone ring system using 2-iodo-3-methylbenzoic acid as starting compound. Structures of four 1-arylbenziodoxolone derivatives
可以使用一酮(2KHSO 5 ·KHSO 4 ·K 2 SO 4)作为廉价且对环境安全的氧化剂,通过一锅法方便地由2-碘苯甲酸和芳烃制备各种1-芳基苯并恶恶唑酮。该方法也适用于使用2-碘-3-甲基苯甲酸作为起始化合物的7-甲基苯并恶唑啉酮环系统的合成。通过单晶X射线衍射分析建立了四个1-芳基苯并恶唑啉酮衍生物的结构。已发现与未取代的1-芳基苯并恶唑烷酮相比,1-芳基-7-甲基苯并恶唑烷酮对亲核试剂具有增强的反应性。