Divergent and Nucleophile‐Assisted Rearrangement in the Construction of Pyrrolo[2,1‐<i>b</i>][3]benzazepine and Pyrido[2,1‐<i>a</i>]isoquinoline Scaffoldsстатья
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Аннотация:Under microwave (MW) irradiation at 150\u2009\u00b0C in toluene and in the presence of nucleophiles (DMAP, triphenylphosphine and tetrahydrothiophene) 1\u2010substituted 1\u2010ethynyl\u20102\u2010vinyldi\u2010 and tetrahydroisoquinolines undergo [3,3]\u2010sigmatropic rearrangement providing pyrrolo[2,1\u2010<jats:italic>b</jats:italic>][3]benzazepines in good yields. The replacement of toluene with acetonitrile directs the rearrangement towards the formation of 7,11b\u2010dihydro\u20106<jats:italic>H</jats:italic>\u2010pyrido[2,1\u2010<jats:italic>a</jats:italic>]isoquinolines