One-Pot Synthesis of Highly Conjugated Benzofuran Derivatives Based on Electrochemical Oxidation of Benzenediols in the Presence of Dibenzoylmethane.

ChemInform ◽  
2007 ◽  
Vol 38 (48) ◽  
Author(s):  
Mohammad Rafiee ◽  
Davood Nematollahi
2020 ◽  
Vol 7 (23) ◽  
pp. 3912-3917
Author(s):  
Qiang Wang ◽  
Xincan Wang ◽  
Qiang Liu ◽  
Guanqun Xie ◽  
Shujiang Ding ◽  
...  

Five-membered N-heterocycles, such as oxadiazoles, thiadiazoles, oxazolines and imidazoles, have been prepared via electrochemical oxidation/[4 + 1] cyclization/dehydrogenative aromatization in one pot from readily available materials.


2020 ◽  
Author(s):  
Lucien Caspers ◽  
Julian Spils ◽  
Mattis Damrath ◽  
Enno Lork ◽  
Boris Nachtsheim

In this article we describe an efficient approach for the synthesis of cyclic diaryliodonium salts. The method is based on benzyl alcohols as starting materials and consists of an Friedel-Crafts-arylation/oxidation sequence. Besides a deep optimization, particluar focusing on the choice and ratios of the utilized Bronsted-acids and oxidants, we explore the substrate scope of this transformation. We also discuss an interesting isomerism of cyclic iodonium salts substituted with aliphatic substituents at the bridge head carbon. <br>


2017 ◽  
Vol 7 (12) ◽  
pp. 1192-1195
Author(s):  
Y. I. Shaikh ◽  
G. M. Nazeruddin ◽  
Khursheed Ahmed

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