Nucleophile-Selective Cross-Coupling Reactions with Vinyl and Alkynyl Bromides on a Dinucleophilic Aromatic Substrate
作者:Lu-Ying He、Mathias Schulz-Senft、Birk Thiedemann、Julian Linshoeft、Paul J. Gates、Anne Staubitz
DOI:10.1002/ejoc.201500138
日期:2015.4
A nucleophile-selective cross-coupling reaction on an aromatic compound bearing two metal groups, Bpin and SnMe3, has been developed. Previously, only aryl bromides and iodides could be used as electrophilic components, but in this work, the scope could be extended to vinyl and alkynyl bromides as electrophiles. This means that the roles typical in Sonogashira couplings or Heck reactions of the aromatic
Pd-Catalyzed Indole Synthesis via C–H Activation and Bisamination Sequence with Diaziridinone
作者:Jianjun Wang、Xiaofeng Sun、Daguo Hu、Yian Shi
DOI:10.1021/acs.orglett.1c02757
日期:2021.10.1
This work describes an efficient Pd-catalyzed indole synthesis. A wide variety of indoles can be obtained in good yields from readily available vinyl bromides. The reaction likely proceeds through a sequential aryl C–Hactivation and bisamination of a resulting pallada(II)cycle with diaziridinone.
这项工作描述了一种有效的 Pd 催化吲哚合成。可以从容易获得的乙烯基溴以良好的收率获得多种吲哚。该反应可能通过连续的芳基 C-H 活化和所得的钯 (II) 环与二氮丙啶酮的双胺化进行。
Cobalt-Catalyzed Cyclization/Hydroboration of 1,6-Diynes with Pinacolborane
作者:Qiang Huang、Meng-Yang Hu、Shou-Fei Zhu
DOI:10.1021/acs.orglett.9b02873
日期:2019.10.4
Herein, we report a protocol for cyclization/hydroboration of 1,6-diynes with pinacolborane using a cobalt catalyst generated in situ from a Co(II)-phenanthroline complex, tetrabutylammonium fluoride, and pinacolborane. This protocol, which features good functional group tolerance, a broad substrate scope, and excellent stereoselectivity, enables the synthesis of useful cyclic 1,3-dienylboron compounds