An Atom-Economical Approach to 2-Triazolyl Thio-/Seleno Pyridines via Ruthenium-Catalyzed One-pot [3+2]/[2+2+2] Cycloadditions

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Title:	An Atom-Economical Approach to 2-Triazolyl Thio-/Seleno Pyridines via Ruthenium-Catalyzed One-pot [3+2]/[2+2+2] Cycloadditions
Authors:	Bhatt, D. Singh, P.R. Kalaramna, P. Kumar, K. Goswami, A.
Keywords:	cyclotrimerizations ruthenium catalysis Thio-/seleno substituted triazoles triazolyl thio-/selenopyridines [3+2] cycloadditions
Issue Date:	23-Aug-2022
Abstract:	An efficient method to access 2-triazolyl thio-/selenopyridines with good to excellent yields by ruthenium(II)-catalyzed one-pot [3+2]/[2+2+2] cycloaddition reactions of azides, 1-alkynyl thio-/selenocyanates and 1,6-diynes is reported. This atom-economical catalytic strategy offers a mild and practical approach to access a variety of such cycloadducts with good to excellect regioselectivities. The protocol was further extended to the synthesis of 3,3′-bis(triazolyl thio-/seleno)-2,2′-bipyridines by the reaction of tetraynes with 1-alkynyl thio-/selenocyanates in the presence of aryl/alkyl azides
URI:	http://localhost:8080/xmlui/handle/123456789/3868
Appears in Collections:	Year-2019

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