CuBr2-catalyzed alkylation of furans with benzyl alcohols and benzaldehydes. Domino reactions including this alkylation as a key step
作者:Anton S. Makarov、Anna E. Kekhvaeva、Christopher J.J. Hall、Daniel R. Price、Igor V. Trushkov、Maxim G. Uchuskin
DOI:10.1016/j.tet.2017.10.054
日期:2017.12
CuBr2-catalyzed alkylation of furans with a broad scope of benzyl alcohols and benzaldehydes is reported. Reaction proceeds efficiently under mild reaction conditions requiring no inert atmosphere or other precautions. Moreover, it is shown that CuBr2 catalyzes domino reactions of furans with benzyl alcohols or benzaldehydes bearing a nucleophilic moiety in the ortho-position. These protocols offer a
Metal free carboamination of internal alkynes – an easy access to polysubstituted quinolines
作者:T. Stopka、M. Niggemann
DOI:10.1039/c5cc10460b
日期:——
A transition metalfree carboamination of unactivated alkynes towards highly substituted quinolines was realized in the presence of a synergistic Bronsted acid based catalyst system. The mechanism was confirmed to...
Photochromic oxazine compounds and methods for their manufacture
申请人:——
公开号:US20030125552A1
公开(公告)日:2003-07-03
The present invention provides photochromic oxazine compounds and methods for their manufacture, which compounds are useful as photochromic compounds. The compounds of the invention have aromatic substituents on the 2 position of the oxazine moiety.
Synthetic strategy toward push-pull chromophores on furan-, benzofuran-, pyrrole-, and indole-based matrices
作者:Danil K. Vshivkov、Arthur N. Bakiev、Diana A. Eshmemeteva、Anton S. Makarov
DOI:10.1016/j.dyepig.2023.111570
日期:2023.11
In the present study, we propose a general synthetic strategy toward potential push-pull chromophores containing furan, benzofuran, pyrrole and indole π-spacers based on the reactivity of substituted furans that act as nucleophilic or electrophilic relays. The results suggest that the strategy could be employed for the design of potential dyes for further studies in organic solar cells or dye-sensitized
A Simple Route to Polysubstituted Indoles Exploiting Azide Induced Furan Ring Opening
作者:Vladimir T. Abaev、Anastasiya T. Plieva、Petrakis N. Chalikidi、Maxim G. Uchuskin、Igor V. Trushkov、Alexander V. Butin
DOI:10.1021/ol5018504
日期:2014.8.15
A straightforward, efficient indole synthesis based on thermolysis of 2-(2-azidobenzyl)furans with attack of the formed nitrene moiety onto the ipso position of furan ring has been developed. The cyclization is accompanied by furan ring opening and affords indoles with a 2-acylvinyl substituent suitable for further modifications.