ChemInform Abstract: One-Pot Synthesis of 2,3-Disubstituted Dihydrobenzofurans and Benzofurans via Rhodium-Catalyzed Intramolecular C-H Insertion Reaction.

ChemInform ◽  
2015 ◽  
Vol 46 (33) ◽  
pp. no-no
Author(s):  
Xueji Ma ◽  
Feifei Wu ◽  
Xiaofei Yi ◽  
Hangxiang Wang ◽  
Wanzhi Chen
2020 ◽  
Vol 18 (25) ◽  
pp. 4815-4823
Author(s):  
Rafael Mafra P. Dias ◽  
Gabriela P. de Oliveira ◽  
Antonio C. B. Burtoloso

A direct and easy approach for the preparation of popular lignin models is described by using the O–H insertion reaction from diazocompounds. This method avoids the use of haloketones and long synthetic routes commonly used to prepare these models.


2019 ◽  
Vol 43 (9-10) ◽  
pp. 392-398 ◽  
Author(s):  
Kang Cheng ◽  
Jinkang Chen ◽  
Licheng Jin ◽  
Jian Zhou ◽  
Xinpeng Jiang ◽  
...  

Rh(III)-catalyzed C–H activation of salicylaldehyde followed by an insertion reaction with sulfoxonium ylides and cyclization is applied to the synthesis of flavonoids. This one-pot strategy exhibits good functional group tolerance and gives flavones in moderate-to-good yields.


2015 ◽  
Vol 51 (31) ◽  
pp. 6862-6865 ◽  
Author(s):  
Xueji Ma ◽  
Feifei Wu ◽  
Xiaofei Yi ◽  
Hangxiang Wang ◽  
Wanzhi Chen

Intramolecular sp3 C–H insertion of α-imino carbenoid. One pot synthesis of benzofuran derivatives.


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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