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2 article(s) from Xu, Zheng

Synthesis of bi- and bis-1,2,3-triazoles by copper-catalyzed Huisgen cycloaddition: A family of valuable products by click chemistry

Zhan-Jiang Zheng,
Ding Wang,
Zheng Xu and
Li-Wen Xu

Beilstein J. Org. Chem. 2015, 11, 2557–2576, doi:10.3762/bjoc.11.276

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Scheme 1: The synthesis of triazoles through the Huisgen cycloaddition of azides to alkynes.

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Scheme 2: The synthesis of symmetrically substituted 4,4'-bitriazoles.

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Scheme 3: The synthesis of unsymmetrically substituted 4,4'-bitriazoles.

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Scheme 4: The stepwise preparation of unsymmetrical 4,4'-bitriazoles.

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Scheme 5: The synthesis of 5,5'-bitriazoles.

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Scheme 6: The synthesis of bistriazoles and cyclic 5,5^’-bitriazoles under different catalytic systems.

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Scheme 7: The double CuAAC reaction between helicenequinone and 1,1^’-diazidoferrocene.

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Scheme 8: The synthesis of 1,2,3-triazoles and 5,5’-bitriazoles from acetylenic amide.

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Scheme 9: The amine-functionalized polysiloxane-mediated divergent synthesis of trizaoles and bitriazoles.

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Scheme 10: The cyclic BINOL-based 5,5’-bitriazoles.

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Scheme 11: The one-pot click–click reactions for the synthesis of bistriazoles.

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Scheme 12: The synthesis of bis(indolyl)methane-derivatized 1,2,3-bistriazoles.

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Scheme 13: The sequential, chemoselective preparation of bistriazoles.

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Scheme 14: The sequential SPAAC and CuAAC reaction for the preparation of bistriazoles.

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Scheme 15: The synthesis of D-mannitol-based bistriazoles.

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Scheme 16: The synthesis of ester-linked and amide-linked bistriazoles.

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Scheme 17: The synthesis of acenothiadiazole-based bistriazoles.

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Scheme 18: The pyrene-appended thiacalix[4]arene-based bistriazole.

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Scheme 19: The synthesis of triazole-based tetradentate ligands.

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Scheme 20: The synthesis of phenanthroline-2,9-bistriazoles.

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Scheme 21: The three-component reaction for the synthesis of bistriazoles.

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Scheme 22: The one-pot synthesis of bistriazoles.

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Scheme 23: The synthesis of polymer-bearing 1,2,3-bistriazole.

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Scheme 24: The synthesis of bistriazoles via a sequential one-pot reaction.

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Review

Published 11 Dec 2015

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A facile synthesis and fungicidal activities of 2-(alkylamino)-5,6-dimethylthieno[2,3-d]pyrimidin- 4(3H)-ones

Yang-Gen Hu,
Ai-Hua Zheng,
Xu-Zhi Ruan and
Ming-Wu Ding

Beilstein J. Org. Chem. 2008, 4, No. 49, doi:10.3762/bjoc.4.49

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Graphical Abstract

Scheme 1: Preparation of iminophosphorane 3.

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Scheme 2: Preparation of 2-(dialkylamino)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-ones 6.

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Scheme 3: Preparation of 2-alkylamino-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-ones 8.

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Preliminary Communication

Published 08 Dec 2008

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