Solvent-assisted one-pot green and diastereoselective synthesis of 1,4-oxazines and 1,4-thioxazines under metal-free conditions.

A novel and efficient three-component, one-pot green and diastereoselective synthesis of 1,4-oxazines and 1,4-thioxazines using formyl-chromone-based enamines under mild reaction conditions is presented. The desired products are afforded in anti-conf…

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