One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones

Reported here is the direct synthesis of naphthofurans and benzofurans from readily available phenols and <i>&#945;</i>-haloketones promoted by titanium tetrachloride which combines Friedel&#8722;Crafts-like alkylation and intramolecular cyclodehydration into one step. This simpl...

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Main Authors: Bingqiao Wang, Qiu Zhang, Juan Luo, Zongjie Gan, Wengao Jiang, Qiang Tang
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/11/2187
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author Bingqiao Wang
Qiu Zhang
Juan Luo
Zongjie Gan
Wengao Jiang
Qiang Tang
author_facet Bingqiao Wang
Qiu Zhang
Juan Luo
Zongjie Gan
Wengao Jiang
Qiang Tang
author_sort Bingqiao Wang
collection DOAJ
description Reported here is the direct synthesis of naphthofurans and benzofurans from readily available phenols and <i>&#945;</i>-haloketones promoted by titanium tetrachloride which combines Friedel&#8722;Crafts-like alkylation and intramolecular cyclodehydration into one step. This simple protocol allows for the formation of a variety of high value naphthofurans and benzofurans within which a series of cyclic and acyclic groups are readily incorporated. This process demonstrates the advantages of high levels of regioselectivity, broad substrate scope, and moderate to excellent yields.
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spelling doaj.art-fd2befd9d8ff496485b3e7215d866d072022-12-22T00:28:45ZengMDPI AGMolecules1420-30492019-06-012411218710.3390/molecules24112187molecules24112187One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-HaloketonesBingqiao Wang0Qiu Zhang1Juan Luo2Zongjie Gan3Wengao Jiang4Qiang Tang5College of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaCollege of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaCollege of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaCollege of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaCollege of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaCollege of Pharmacy, Center for Lab Teaching and Management, Chongqing Medical University, No.1 Yixueyuan Road, Chongqing 400016, ChinaReported here is the direct synthesis of naphthofurans and benzofurans from readily available phenols and <i>&#945;</i>-haloketones promoted by titanium tetrachloride which combines Friedel&#8722;Crafts-like alkylation and intramolecular cyclodehydration into one step. This simple protocol allows for the formation of a variety of high value naphthofurans and benzofurans within which a series of cyclic and acyclic groups are readily incorporated. This process demonstrates the advantages of high levels of regioselectivity, broad substrate scope, and moderate to excellent yields.https://www.mdpi.com/1420-3049/24/11/2187naphthofuranbenzofurantitanium tetrachloride<i>α</i>-haloketonescyclodehydration
spellingShingle Bingqiao Wang
Qiu Zhang
Juan Luo
Zongjie Gan
Wengao Jiang
Qiang Tang
One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
Molecules
naphthofuran
benzofuran
titanium tetrachloride
<i>α</i>-haloketones
cyclodehydration
title One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
title_full One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
title_fullStr One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
title_full_unstemmed One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
title_short One-Step Regioselective Synthesis of Benzofurans from Phenols and <i>α</i>-Haloketones
title_sort one step regioselective synthesis of benzofurans from phenols and i α i haloketones
topic naphthofuran
benzofuran
titanium tetrachloride
<i>α</i>-haloketones
cyclodehydration
url https://www.mdpi.com/1420-3049/24/11/2187
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AT zongjiegan onestepregioselectivesynthesisofbenzofuransfromphenolsandiaihaloketones
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