作者:J. Druey、E. F. Jenny、K. Schenker、R. B. Woodward
DOI:10.1002/hlca.19620450224
日期:——
The reaction between diphenylketene and ethoxyacetylene at −25° is shown to yield 1,1-diphenyl-2-ethoxy-cyclobut-2-en-4-one (I) and 1-ethoxy-3-oxo-3a-phenyl-3,3a-dihydroazulene (II). The modes of formation of I and II, their rearrangements to naphthalene derivatives are discussed and an unambiguous structural proof for II is given.
显示二苯乙烯酮与乙氧基乙炔在-25°下的反应可生成1,1-二苯基-2-乙氧基-环丁-2-烯-4-酮(I)和1-乙氧基-3-氧代-3a-苯基-3 ,3a-二氢氮杂烯(II)。讨论了I和II的形成方式,它们对萘衍生物的重排,并给出了II的明确结构证明。