40164-53-2Relevant articles and documents
Tosyloxybenziodoxolone: A Platform for Performing the Umpolung of Alkynes in One-Pot Transformations
Borrel, Julien,Waser, Jerome
, p. 142 - 146 (2021/12/27)
Ethynylbenziodoxolones (EBXs) are commonly encountered reagents for the electrophilic alkynylation of nucleophiles. Herein, we report a one-pot, two-step process for EBX generation and their direct application in substrate functionalization. Our approach enables us to bypass the originally mandatory isolation and purification of the reagents, resulting in a more efficient synthesis. We could apply this process to seven different transformations involving both two- and one-electron nucleophiles to obtain a large variety of alkynylated products.
Nickel-Catalyzed Sonogashira Coupling Reactions of Nonactivated Alkyl Chlorides under Mild Conditions
Fan, Qingqing,Sun, Hongjian,Xie, Shangqing,Dong, Yanhong,Li, Xiaoyan,Fuhr, Olaf,Fenske, Dieter
, p. 2240 - 2245 (2021/04/06)
The two nickel chlorides1and2with [P,S] and [P,Se] bidentate ligands, respectively, were synthesized and used as catalysts for Sonogashira coupling reaction. Both1and2are efficient catalysts for Sonogashira C(sp3)-C(sp) coupling reactions. Comp
Metal-Free Visible-Light-Mediated Aromatization of 1,2–Dihydronaphthalenes
Rammal, Fatima,Gaumont, Annie-Claude,Lakhdar, Sami
supporting information, p. 1482 - 1485 (2019/12/12)
A series of polyaromatic naphthalenes have been synthesized through the dehydrogenation of the corresponding 1,2-dihydroarylnaphthalenes by using 9-mesityl-10-methylacridinium perchlorate as a photocatalyst and diphenyliodonium triflate as an external oxidant under visible light irradiation. The reaction proceeds smoothly under metal-free conditions and tolerates some functionalities. Interestingly, the reaction is also amenable to the aromatization of tetrahydronaphthalenes and fair conversions were obtained. Preliminary mechanistic investigations have been conducted and a reasonable mechanism is proposed.