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Front Cover Picture: Expedient Synthesis of Substituted Benzoheterocycles using 2‐Butoxy‐2,3‐dihydrofurans as [4+2] Benzannulation Reagents (Adv. Synth. Catal. 14/2016)
Author(s) -
Liu Changhui,
Huang Wenbo,
Wang Man,
Pan Bin,
Gu Yanlong
Publication year - 2016
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201600411
Subject(s) - chemistry , annulation , front cover , reagent , lewis acids and bases , catalysis , combinatorial chemistry , alkoxy group , brønsted–lowry acid–base theory , cover (algebra) , organic chemistry , mechanical engineering , alkyl , engineering
The front cover picture , provided by Yanlong Gu and co‐workers, describes a class of versatile benzannulation reagents, 2‐alkoxy‐2,3‐dihydrofurans that can be obtained from readily available substrates through a simple synthetic operation. Indoles, carbazoles, naphthalenes, benzofurans, and benzothiophenes can be synthesized via the [4+2] annulation of 2‐butoxy‐2,3‐dihydrofuran with various electron‐rich heterocycles or arenes in the presence of Lewis acid or Brønsted acid catalysts. Details can be found in the communication on pages 2260–2266 (C. Liu, W. Huang, M. Wang, B. Pan, Y. Gu, Adv. Synth. Catal. 2016 , 358 , 2260–2266; DOI: 10.1002/adsc.201600185 ).