Abstract
Condensation of 2-naphthol, furfural, and acetamide in the presence of boric acid as acidic catalyst has led to Betti product N -[furan-2-yl-(2-hydroxynaphthalen-1-yl)methyl]acetamide along with a new 10,10-dihydrocyclopenta[ b ]naphtho[1,2- d ]furan derivative, which resulted from rare carbo-Piancatelli rearrangement. The structure is confirmed by 1 H, 13 C NMR, HRMS, and X-ray analyses. Mechanism of the transformation is discussed.
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