T. Horaguchi, T. Abe
Jul 1, 1978
Citations
0
Influential Citations
5
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
4,5-Dihydro-3H-naphtho[1,8-bc]furans (1a–d) reacted with a variety of electrophilic reagents to give the corresponding 2-substituted 4,5-dihydro-3H-naphtho[1,8-bc]furans. Hydrogenation of 1a–d gave the corresponding 2a,3,4,5-tetrahydro-2H-naphtho[1,8-bc]furans. 2H-Naphtho[1,8-bc]furans (7a–c) which were prepared from 1a–c were gradually converted to the 8-hydroxynaphthalene-1-carbaldehydes in air. The facile cleavage of the ether bond of 7a–c is thought due to ring strain in the 2H-naphtho[1,8-bc]furan ring system.