N-Acyloxyphthalimides as Nitrogen Radical Precursors in the Visible Light Photocatalyzed Room Temperature C–H Amination of Arenes and Heteroarenes
摘要:
This paper reports a room temperature visible light photocatalyzed method for the C-H amination of arenes and heteroarenes. A key enabling advance in this work is the design of N-acyloxyphthalimides as precursors to nitrogen-based radical intermediates for these transformations. A broad substrate scope is presented, including the selective meta-amination of pyridine derivatives. A radical aromatic substitution mechanism is proposed.
Direct C(sp<sup>2</sup>)–H amination of aryl aldehyde-derived hydrazones via visible light promoted photoredox catalysis
作者:Xin Zhu、Zhi He、Qiu-Yan Li、Xiao-Jun Wang
DOI:10.1039/c7ra01229b
日期:——
An unprecedented visible-light-induced direct C(sp2)–Hamination of aryl aldehyde-derived hydrazones was developed by using N-acyloxyphthalimides as nitrogen-radical precursors. This reaction represents a new way to substituted hydrazones with amination of carbon–nitrogen π bonds. A radical C–H amination mechanism is proposed.
Trifluoroacetoxybenzotriazole as a condensing agent in peptide synthesis
作者:L. A. Pavlova、Yu. A. Davidovich、S. V. Rogozhin
DOI:10.1007/bf00950316
日期:1981.6
Ink for ink jet-recording curable through irradiation and method for preparing lithographic printing plates using the same
申请人:FUJIFILM Corporation
公开号:EP1666551B1
公开(公告)日:2010-02-17
US7635181B2
申请人:——
公开号:US7635181B2
公开(公告)日:2009-12-22
<i>N</i>-Acyloxyphthalimides as Nitrogen Radical Precursors in the Visible Light Photocatalyzed Room Temperature C–H Amination of Arenes and Heteroarenes
作者:Laura J. Allen、Pablo J. Cabrera、Melissa Lee、Melanie S. Sanford
DOI:10.1021/ja501906x
日期:2014.4.16
This paper reports a room temperature visible light photocatalyzed method for the C-H amination of arenes and heteroarenes. A key enabling advance in this work is the design of N-acyloxyphthalimides as precursors to nitrogen-based radical intermediates for these transformations. A broad substrate scope is presented, including the selective meta-amination of pyridine derivatives. A radical aromatic substitution mechanism is proposed.