作者:Latchezar S. Trifonov、Alexander S. Orahovats、Anthony Linden、Heinz Heimgartner
DOI:10.1002/hlca.19920750613
日期:1992.10.2
The allenic α-ketones 5a–f give, on irradiation in the presence of [Fe(CO)5], the bis(tricarbonyliron) complexes 6a–f. In the case of ketone 5e, a minor bis(tricarbonyliron) complex with the proposed unique structure 8 is also obtained. Ketones 5a–d, which are disubstituted at C(4), under the same conditions, afford also the lactones 7a–d in moderate yields. The latter reaction is a new carbonyliron-mediated
在[Fe(CO)5 ]存在下,烯丙基α-酮5a-f照射后生成双(三羰基铁)配合物6a-f。在酮5e的情况下,还获得具有所提出的独特结构8的次要双(三羰基铁)络合物。在相同条件下在C(4)处被双取代的酮5a-d也可提供中等收率的内酯7a-d。后者反应是新的羰基铁介导的羰基插入。通过X射线晶体学确定双核复合物1a和6e的结构。