The preparation of substituted 3,4-dihydro-l(2H)-naphthalenones from benzocyclobutenones via sequential thermal electrocyclic reactions
作者:Derek N. Hickman、Kevin J. Hodgetts、Peter S. Mackman、Timothy W. Wallace、J.Michael Wardleworth
DOI:10.1016/0040-4020(95)01054-8
日期:1996.2
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.
由苯并环丁烯酮通过添加烯基格利雅试剂或添加炔基锂试剂,然后经(E)选择性还原而制得的1-烯基苯并环丁烯醇,经过连续的4π和6π热电环化反应生成取代的3,4-二氢-1(2 H) -萘酮。类似的序列从萘并[b]环丁烯-1(2 H)-1得到3,4,-二氢-1(2 H)-蒽酮。