Base-promoted synthesis of 1H,3H-pyrrolo[1,2-c]thiazol-3-imine derivatives via [3+2] annulation of 2-alkynylpyrroles with isothiocyanates
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Add time:09/05/2019 Source:sciencedirect.com
Base-promoted [3+2] annulation of 2-alkynyl pyrrole with isothiocyanate affording 1H,3H-pyrrolo[1,2-c]thiazol-3-imine derivatives has been developed. The control experiments suggest that the reaction proceeds via simple nucleophilic attack followed by intramolecular addition. The present cascade reaction provides a facile one-pot synthesis of 1H,3H-pyrrolo[1,2-c]thiazol-3-imine derivatives under mild conditions with good yields and high regioselectivity.
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