Abstract
AbstractThe one‐pot sequential reaction of arylamines, methyl propiolate and 2‐aryl‐3‐nitrochromenes without any catalyst in refluxing ethanol afforded the polysubstituted 3‐(3‐nitro‐2‐phenylchroman‐4‐yl)‐3‐arylaminoacrylates in good yields and with high diastereoselectivity. Reaction mechanism was believed involving the initial formation of β‐enamino ester and sequential Michael addition.
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