作者:J. J. Plattner、J. A. Parks
DOI:10.1002/jhet.5570200443
日期:1983.7
The preparation of new dihydrofuro[2, 3-f]indole derivatives and their fully aromatic counterparts is described. Key steps in the synthesis include a Claisen rearrangement/m-chloroperoxybenzoic acid oxidation sequence to form a dihydrobenzofuran intermediate and an iron/acetic acid reductive cyclization to generate the dihydrofuro[2, 3-f]indole nucleus. Introduction of a 5-phenyl substituent on the
描述了新的二氢呋喃并[2,3- f ]吲哚衍生物及其完全芳族化合物的制备。在合成的关键步骤包括:克莱森重排/中号氯过氧酸氧化序列以形成二氢苯并呋喃中间体和铁/乙酸还原环化以产生二氢呋喃并[2,3- ˚F ]吲哚核。通过修饰的Ullmann反应将5-苯基取代基引入到吲哚氮上。通过用2,3-二氯-5,6-二氰基-1,4-苯醌进行脱氢,从二氢同类物中获得完全芳族的呋喃[2,3- f ]吲哚。