作者:Pher G. Andersson、Ylva I.M. Nilsson、Jan-E. Bäckvall
DOI:10.1016/s0040-4020(01)80776-6
日期:1994.1
(π-allyl)palladium intermediate, which is attacked by an acetate or a chloride nucleophile leading to an overall 1,4-addition across the diene. The intermediate (π-allyl) palladium complex was independently prepared and characterized. The stereochemistry of the 1,4-addition can be controlled to give either cis or trans 1,4-addition across the double bonds. The oxaspirocyclization was applied to the total
1-(3-羟烷基)和1-(4-羟烷基)-1,3-环链二烯的钯催化氧化导致立体控制的氧螺环环化。该反应通过螺环(π-烯丙基)钯中间体进行,该中间体被乙酸盐或氯化物亲核试剂攻击,导致整个二烯上的整个1,4-加成。中间体(π-烯丙基)钯配合物是独立制备和表征的。可以控制1,4-加成的立体化学以产生双键上的顺式或反式1,4-加成。oxaspiro环化被应用于theaspirone的全合成。