Nickel-Catalyzed Intermolecular Insertion of Aryl Iodides to Nitriles: A Novel Method to Synthesize Arylketones
摘要:
A novel procedure for the NiCl2(DME)/dppp/Zn system catalyzed intermolecular insertion of aryl iodides to nitriles was developed, which afforded variously substituted arylketone derivatives in moderate to good yields with tolerance of a wide variety of functional groups.
Intermolecular Addition Reaction to Alkenes of Acylmolybdenum Complexes Generated by Oxidative Addition of Aryl or Alkenyl Halides with Molybdenum(0) Carbonyl Complexes
Acylmolybdenum species, generated by oxidativeaddition of aryl or alkenyl halides with molybdenum(0) carbonylcomplex followed by carbon monoxide insertion, added to various kinds of alkenes intermolecularly to give simple addition products in good yields without formation of carbonylative Heck-type products.
Palladium-catalyzed Dehydrogenative [3+3] Aromatization of Propyl Ketones and Allyl Carbonates
作者:Kenta Koike、Satoshi Ueno
DOI:10.1246/cl.220032
日期:2022.4.5
A Pd-catalyzed dehydrogenative [3+3] aromatization of 3-phenylpropyl ketones and allylcarbonates has been developed. The reaction gives various di- or tri-substituted aromatic ketones. The reaction consisting of five steps efficiently proceeded in a one-batch, one-manipulation setup. The postulated active species, η3-allyl palladium complex, works as a catalyst for triple dehydrogenations and mono
A binap-ligated copper dimer has been heterogenized on a pillar-layered MOF surface for the first time using a hydroxamic acid linker. This MOF-supported dimeric copper photocatalyst demonstrates much higher activity and recyclability than its homogeneous counterparts in intra- and intermolecular radicalreactions of N-acyloxy imidates and O-acyl oximes.
A novel procedure for the NiCl2(DME)/dppp/Zn system catalyzed intermolecular insertion of aryl iodides to nitriles was developed, which afforded variously substituted arylketone derivatives in moderate to good yields with tolerance of a wide variety of functional groups.
Aerobic Oxidative Dehydrogenation of Ketones to 1,4-Enediones
作者:Bao-Yin Zhao、Xing-Long Zhang、Rui-Li Guo、Meng-Yue Wang、Ya-Ru Gao、Yong-Qiang Wang
DOI:10.1021/acs.orglett.0c04174
日期:2021.2.19
An efficient and unprecedented strategy for the synthesis of 1,4-enediones from saturated ketones has been developed via palladium-catalyzedoxidativedehydrogenation. The protocol employs molecular oxygen as the sole oxidant and represents an atom- and step-economic process. The approach showed broad substrate scope, good functional group tolerance, and complete E-stereoselectivity. The reaction mechanism