Copper-Catalyzed Borylative Cyclization of <i>o</i>-(Cyano)phenyl Propargyl Carbonates: Synthesis of Functionalized 1-Naphthylamines
作者:Meijun Xiong、Hui Hu、Xiaoping Hu、Yuanhong Liu
DOI:10.1021/acs.orglett.8b01457
日期:2018.6.15
Copper-catalyzed borylative cyclization of o-(cyano)phenyl propargyl carbonates leads to a highly efficient and regioselective synthesis of 3-boryl-1-naphthylamines. A cascade sequence involving the formation of allenyl boronates via borylcupration, deborylation, borylcupration, and cyclization is proposed for this reaction. The resulting products have been applied for the synthesis of a variety of
Copper-Catalyzed Borylative Cyclization of in Situ Generated <i>o</i>-Allenylaryl Nitriles with Bis(pinacolato)diboron
作者:Meijun Xiong、Xin Xie、Yuanhong Liu
DOI:10.1021/acs.orglett.7b01355
日期:2017.7.7
A Cu-catalyzed cascade borylcupration/cyclization of in situ generated allene-nitriles with B(2)pin(2) has been developed, which provides highly substituted 3-boryl-1-naphthylamines with excellent regioselectivity and wide functional group compatibility. It has been shown that, for the first time, the catalytically generated allylcopper species can be captured-by a cyano group from a normal nitrile to furnish a carbocycle.
Rapid and green synthesis of complementary D-A small molecules for organic photovoltaics
Two push-pull molecules with close molecular structures have been synthesized through two green steps, direct heteroarylation and Knoevenagel condensation. The electronic properties and the basic bilayer heterojunction solar cells demonstrate that the two molecules are complementary in term of light absorption. Thus solar cells using a blend of the two molecules present higher power conversion efficiencies, reaching 3%, than the cells made from each compound alone. (C) 2016 Elsevier B.V. All rights reserved.
DUBUS P.; DECROIX B.; MOREL J.; PASTOUR P., BULL. SOC. CHIM. FRANCE <BSCF-AS>, 1976, NO 3-4, PART. 2, 628-634