A novel C–N cleavage in isoquinolines allowing the first direct transformation of 1-benzylisoquinolines into benzo[c]phenanthridines and a new route to 2-phenyl-1,4-naphthoquinones
作者:Mónica Treus、Juan C Estévez、Luis Castedo、Ramón J Estévez
DOI:10.1016/s0040-4039(00)01052-2
日期:2000.8
can easily be transformed into N-carbethoxy-1-amino-2-phenylnaphthalenes. Bichler–Napieralski reaction of these latter compounds affords the corresponding benzo[c]phenanthridines, while their hydrolysis and subsequent oxidation constitutes a route to 2-phenyl-1,4-naphthoquinones.
的治疗N-乙酯基-1- benzylideneisoquinolines用LDA给出N-乙氧羰基-1-氨基-1-(2-乙烯基苯基)-2- phenylethylenes,其可以容易地转化为N-乙氧甲酰基-1-氨基-2- phenylnaphthalenes。后面这些化合物的Bichler-Napieralski反应可提供相应的苯并[ c ]菲啶,而它们的水解和随后的氧化反应则是形成2-苯基-1,4-萘醌的途径。