Cationic ring contraction of seven-membered cycle of 3,4-dihydro-2H-1,5-benzoxathiepine derivatives
Chem. Heterocycl. Compd. 2019, 55 (4-5), 416-420
A number of 1,4-benzoxathiine derivatives was obtained using ring contraction of seven-membered cycle of 3,4-dihydro-2H-1,5-benzoxathiepin-3-ol derivatives. This synthetic approach allowed to obtain the corresponding alkene, alcohol, nitrile, chloride, bromide, azide, and amine.