Electrophotochemical Ce-Catalyzed Ring-Opening Functionalization of Cycloalkanols under Redox-Neutral Conditions: Scope and Mechanism
作者:Zhaoliang Yang、Dali Yang、Jianye Zhang、Chenyu Tan、Jiajun Li、Shengchun Wang、Heng Zhang、Zhiliang Huang、Aiwen Lei
DOI:10.1021/jacs.2c05520
日期:2022.8.3
alcohols is gaining increasing interest in organic synthesis and biomass conversion. In particular, the development of redox-neutral catalytic methods with cheap catalysts and clean energy is of utmost interest. In this work, we report a versatile redox-neutral method for the ring-opening functionalization of cycloalkanols by electrophotochemical (EPC) cerium (Ce) catalysis. The EPC-Ce-enabled catalysis
A Versatile Route to Unstable Diazo Compounds via Oxadiazolines and their Use in Aryl-Alkyl Cross-Coupling Reactions
作者:Andreas Greb、Jian-Siang Poh、Stephanie Greed、Claudio Battilocchio、Patrick Pasau、David C. Blakemore、Steven V. Ley
DOI:10.1002/anie.201710445
日期:2017.12.22
Coupling of readily available boronicacids and diazo compounds has emerged recently as a powerful metal-free carbon-carbon bond forming method. However, the difficulty in forming the unstable diazo compound partner in a mild fashion has hitherto limited their general use and the scope of the transformation. Here, we report the application of oxadiazolines as precursors for the generation of an unstable
Catalytic Friedel‐Crafts Reactions on Saturated Heterocycles and Small Rings for sp
<sup>3</sup>
‐sp
<sup>2</sup>
Coupling of Medicinally Relevant Fragments
作者:Rosemary A. Croft、Maryne A. J. Dubois、Alexander J. Boddy、Camille Denis、Anna Lazaridou、Anne Sophie Voisin‐Chiret、Ronan Bureau、Chulho Choi、James J. Mousseau、James A. Bull
DOI:10.1002/ejoc.201900498
日期:2019.9
A systematic comparison of Lewis acid catalysts [Ca(II), Li(I) and Fe(III)] is presented for catalytic Friedel–Crafts reactions using alcohols on 4‐, 5‐, and 6‐membered oxygen and nitrogen heterocycles and cyclobutanes, forming gem‐diaryl quaternary centers.