Serendipitous synthesis of 2-amino-2,3-dihydrobenzofuran derivatives starting from Baylis-Hillman adducts

Serendipitous synthesis of 2-amino-2,3-dihydrobenzofuran derivatives 4a-g was achieved starting from the Baylis-Hillman adducts. In the reaction sequence, intramolecular oxygen atom transfer from nitrogen atom to arene moiety was observed.