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Asymmetric Synthesis of cis-4-Aminobenzopyran Derivatives Catalyzed by N,N'-Dioxide-Sc(OTf ) sub(3) Complexes

The reactions of salicylaldimines with electron-rich alkenes (2,3-dihydro-2H-furan and 3,4-dihydro-2H-pyran) catalyzed by N,N'-dioxide-Sc(OTf) sub(3) complexes were investigated. The methodology was successfully applied to the asymmetric synthesis of cis-4-aminobenzopyran derivatives. Excellent yiel... Full description

Journal Title: Chemistry: A European Journal December 2011, Vol.17(49), pp.13684-13687
Main Author: Zhang, Yulong
Other Authors: Dong, Shunxi , Liu, Xiaohua , Xie, Mingsheng , Zhu, Yin , Lin, Lili , Feng, Xiaoming
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0947-6539 ; E-ISSN: 1521-3765 ; DOI: 10.1002/chem.201102058
Link: http://search.proquest.com/docview/1800491734/?pq-origsite=primo
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title: Asymmetric Synthesis of cis-4-Aminobenzopyran Derivatives Catalyzed by N,N'-Dioxide-Sc(OTf ) sub(3) Complexes
format: Article
creator:
  • Zhang, Yulong
  • Dong, Shunxi
  • Liu, Xiaohua
  • Xie, Mingsheng
  • Zhu, Yin
  • Lin, Lili
  • Feng, Xiaoming
subjects:
  • Derivatives
  • Chemical Reactions
  • Asymmetry
  • Alkenes
  • Substrates
  • Synthesis
  • Methodology
  • Analysis (MD)
  • Chemical Analysis (Ep)
  • Chemical Analysis (Ed)
  • Chemical Analysis (EC)
ispartof: Chemistry: A European Journal, December 2011, Vol.17(49), pp.13684-13687
description: The reactions of salicylaldimines with electron-rich alkenes (2,3-dihydro-2H-furan and 3,4-dihydro-2H-pyran) catalyzed by N,N'-dioxide-Sc(OTf) sub(3) complexes were investigated. The methodology was successfully applied to the asymmetric synthesis of cis-4-aminobenzopyran derivatives. Excellent yields, diastereo- and enantioselectivities were observed for a broad range of substrates under mild conditions (see scheme).
language: eng
source:
identifier: ISSN: 0947-6539 ; E-ISSN: 1521-3765 ; DOI: 10.1002/chem.201102058
fulltext: fulltext
issn:
  • 09476539
  • 0947-6539
  • 15213765
  • 1521-3765
url: Link


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titleAsymmetric Synthesis of cis-4-Aminobenzopyran Derivatives Catalyzed by N,N'-Dioxide-Sc(OTf ) sub(3) Complexes
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subjectDerivatives ; Chemical Reactions ; Asymmetry ; Alkenes ; Substrates ; Synthesis ; Methodology ; Analysis (MD) ; Chemical Analysis (Ep) ; Chemical Analysis (Ed) ; Chemical Analysis (EC)
descriptionThe reactions of salicylaldimines with electron-rich alkenes (2,3-dihydro-2H-furan and 3,4-dihydro-2H-pyran) catalyzed by N,N'-dioxide-Sc(OTf) sub(3) complexes were investigated. The methodology was successfully applied to the asymmetric synthesis of cis-4-aminobenzopyran derivatives. Excellent yields, diastereo- and enantioselectivities were observed for a broad range of substrates under mild conditions (see scheme).
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titleAsymmetric Synthesis of cis-4-Aminobenzopyran Derivatives Catalyzed by N,N'-Dioxide-Sc(OTf ) sub(3) Complexes
descriptionThe reactions of salicylaldimines with electron-rich alkenes (2,3-dihydro-2H-furan and 3,4-dihydro-2H-pyran) catalyzed by N,N'-dioxide-Sc(OTf) sub(3) complexes were investigated. The methodology was successfully applied to the asymmetric synthesis of cis-4-aminobenzopyran derivatives. Excellent yields, diastereo- and enantioselectivities were observed for a broad range of substrates under mild conditions (see scheme).
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abstractThe reactions of salicylaldimines with electron-rich alkenes (2,3-dihydro-2H-furan and 3,4-dihydro-2H-pyran) catalyzed by N,N'-dioxide-Sc(OTf) sub(3) complexes were investigated. The methodology was successfully applied to the asymmetric synthesis of cis-4-aminobenzopyran derivatives. Excellent yields, diastereo- and enantioselectivities were observed for a broad range of substrates under mild conditions (see scheme).
doi10.1002/chem.201102058
urlhttp://search.proquest.com/docview/1800491734/
date2011-12-02