The present invention discloses a novel furo[2,3-b]pyran-2-one compound of formula (I) and a single step process for the preparation of furo[2,3-b]pyran-2-ones using Lewis acid-promoted cascade annulation of alkynols and α-ketoesters.
本发明揭示了一种新型的furo[2,3-b]
吡喃-2-酮化合物(I式)以及使用Lewis酸促进的炔醇和α-
酮酸酯的级联环化反应的单步制备furo[2,3-b]
吡喃-2-酮的方法。