Novel green synthesis demonstrates diastereoselective formation of 1,4-oxazines, indicating potential for metal-free reactions.
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.
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Ahmad et al. (2025) studied this question.
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