Add time:08/09/2019         Source:sciencedirect.com

Highly efficient microwave-assisted solvent- and catalyst-free multicomponent synthesis of 5-R-imino-[4-trialkylsilyl(germyl)]-1H-1,2,3-triazoles from Si/Ge-substituted propynals, trimethylsilyl azide and functionalized primary amines has been developed. In the case of 2-aminoethanethiol, 4-element substituted 5-(1,3-thiazolan-2-yl)-1H-1,2,3-triazoles have been obtained. Their heterolysis by MeOH at room temperature leads to the corresponding triazoloimines in high yield.

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