Dioxa-cage and bridged compounds as possible precursors for tricyclo[5.5.0.04,10]dodeca-2,5,8,11-tetraene
作者:Eckehard V. Dehmlow、Carsten Gröning
DOI:10.1016/s0040-4020(01)80583-4
日期:1992.1
The bis-dibromocarbene adduct 6 of oxa-[4.4.3]propelladiene (5) was solvolyzed in the presence of silver nitrate yielding 7 and the novel compound 8. Attempts at conversion of the latter into a derivative of 3 were not sucessful as yet. Experiments towards ring enlargement of 9 via silylenol ethers / carbene additions gave 10–13. In another novel and unique transformation,bridged polycycles 14 and
在硝酸银的存在下,将草酸-[4.4.3]丙二烯(5)的双二溴卡宾加合物6溶剂化,得到7和新化合物8。尚未尝试将后者转换为3的导数。通过甲硅烷基醚/卡宾的加成使环扩环9的实验得到10-13。在另一新颖且独特的转化中,通过将二溴卡宾加成到双烯醇醚12中形成桥连的多环14和15。