133566-00-4Relevant articles and documents
The preparation of substituted 3,4-dihydro-1(2H)-naphthalenones from benzocyclobutenones via sequential thermal electrocyclic reactions
Hickman, Derek N.,Hodgetts, Kevin J.,Mackman, Peter S.,Wallace, Timothy W.,Wardleworth, J. Michael
, p. 2235 - 2260 (2007/10/03)
1-Alkenylbenzocyclobutenols, prepared from benzocyclobutenones via the addition of alkenyl Grignard reagents or the addition of alkynyllithium reagents followed by (E)-selective reduction, undergo successive thermal 4π and 6π electrocyclisations to give substituted 3,4-dihydro-1(2H)-naphthalenones. An analogous sequence gave 3,4-dihydro-1(2H)-anthracenone from naphtho[b]cyclobuten-1(2H)-one.
