Some Transformations of 1-(1,2,3,4-Tetranaphthylidene)-Malononitrile or Cyanoacetate

Article abstract of DOI:10.1007/BF00809775

Syntheses of 11-amino-5,6-dihydronaphtho<1',2':4,5>thieno<2,3-d>pyrimidine (8) and its 10-oxide 7 from 2-amino-1-cyano-4,5-dihydronaphtho<2,1-b>thiophene and its derivatives are described.Several open chain tetrahydronaphthylidene derivatives and a substituted pyrimidine derivative 9 were also prepared.