Convenient preparation of 4-diazoisochroman-3-imines and 3-subsituted 3,5-dihydroisochromeno[3,4-d][1,2,3]triazoles

A novel and convenient preparation of 4-diazoisochroman-3-imines through the copper(i)-catalyzed cascade reaction of (2-ethynylphenyl)-methanols with sulfonyl azides is described. The synthesized cyclical α-diazo imidates could readily react with a variety of primary amines to furnish 3-substituted...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2017, Vol.53 (26), p.3769-3772
Hauptverfasser:	Ren, Anni, Lu, Ping, Wang, Yanguang
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Sprache:	eng
Schlagworte:	Amines Cascade chemical reactions Catalysts Synthesis (chemistry)
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creator	Ren, Anni Lu, Ping Wang, Yanguang
description	A novel and convenient preparation of 4-diazoisochroman-3-imines through the copper(i)-catalyzed cascade reaction of (2-ethynylphenyl)-methanols with sulfonyl azides is described. The synthesized cyclical α-diazo imidates could readily react with a variety of primary amines to furnish 3-substituted 3,5-dihydroisochromeno[3,4-d][1,2,3]-triazoles under catalyst-free conditions.
doi_str_mv	10.1039/c7cc00603a
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subjects	Amines Cascade chemical reactions Catalysts Synthesis (chemistry)
title	Convenient preparation of 4-diazoisochroman-3-imines and 3-subsituted 3,5-dihydroisochromeno[3,4-d][1,2,3]triazoles
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