developed. The structure of 10 was assigned by spectroscopic means and confirmed by X-ray analysis of its 2,4-dinitrophenylhydrazone derivative. Reaction of the triple bond of 10 with dicarbonyl(η5-cyclopentadienyl)cobalt or dicarbonyl(η5-pentamethylcyclopentadienyl)cobalt gave the corresponding metal-stabilized cyclobutadiene complexes. alkynes - cycloadditions - eliminations - oxidations - ring expansion
开发了一个11,12-二氢二苯并[ a,e ]环
辛烯-5(6 H)-一(10)的八步合成法。通过光谱学方法确定10的结构,并通过X射线分析对其2,4-
二硝基苯基hydr衍
生物进行确认。的三键的反应10与二羰基(η 5 -
环戊二烯基)
钴或二羰基(η 5 -五甲基)
钴得到相应的
金属稳定化的
环丁二烯络合物。 炔-环加成-消除-氧化-环膨胀。