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Issue 26, 2017
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Convenient preparation of 4-diazoisochroman-3-imines and 3-subsituted 3,5-dihydroisochromeno[3,4-d][1,2,3]triazoles

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Abstract

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.

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

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Publication details

The article was received on 22 Jan 2017, accepted on 13 Mar 2017 and first published on 13 Mar 2017


Article type: Communication
DOI: 10.1039/C7CC00603A
Citation: Chem. Commun., 2017,53, 3769-3772
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    Convenient preparation of 4-diazoisochroman-3-imines and 3-subsituted 3,5-dihydroisochromeno[3,4-d][1,2,3]triazoles

    A. Ren, P. Lu and Y. Wang, Chem. Commun., 2017, 53, 3769
    DOI: 10.1039/C7CC00603A

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