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  • Józset Fetter, Tibor Czuppon, Gyula Hornyak, Antal Feller
  • Chemistry
  • 1991 (First Published: 1 November 1991)
  • Abstract A series of N (2)-(2-halomethyl-4-oxo-3,4-dihydroquinazolin-3-yl) carbazates 4 and 5 and 2-halomethyl-3-hetarylquinazolin-4-(3 H )-ones 8 and 9 were obtained by reacting 2-halomethyl-4 HContinue Reading
  • Ferenc Bertha, Gy. Hornyák, +4 authors Gábor Tóth
  • Chemistry
  • 1985 (First Published: 5 November 1985)
  • Abstract A method is described for the synthesis of hydrochlorides of some type 8 title compounds in which the nucleophilicity of N-2 is reduced or completely lost so as to prevent ring contractionContinue Reading
    Abstract When treated with strong acids, the N -(2-thiocyanatoethyl)- o -phenylenediamines ( 1g - 1v ) are cyclized exclusively to 3-(2-aninophen- yl)-2-iminothiazolidines ( 6 ) while the relatedContinue Reading