Metal promoted cyclization. 9. Controlled and catalytic acylpalladation. A novel route to cyclopentenone and cyclohexenone derivatives
作者:James M. Tour、Eiichi Negishi
DOI:10.1021/ja00312a095
日期:1985.12
Palladium-catalyzed carbonylative cyclization of o-allylbenzyl halides to produce benzo-annulated enol lactones and/or bicyclo[3.3.0]hept-3-en-6-ones. An efficient route to U-68,215
作者:Guangzhong Wu、Izumi Shimoyama、Eiichi Negishi
DOI:10.1021/jo00023a011
日期:1991.11
Treatment of omicron-allylbenzyl halides with CO in the presence of 1.5-2.0 equiv of a base, such as NEt3, and a catalytic amount of a palladium complex, such as Cl2Pd(PPh3)2, provides a 2,3,3a,4-tetrahydro-2-oxonaphthyl[2,3-b]furans and/or cyclovutanone derivatives tentatively identified as 2,2a,7,7a-tetrahydro-1H-cyclobut[a]inden-2-ones.