STUDIES ON NOVEL HETEROCYCLIC RING-SYSTEMS - REACTIONS OF AMINOPHENYL)]-NAPHTHO[2,1-B]2,3-DIHYDROPYRAN-4-ONE WITH 2-MERCAPTOANILINE AND FORMATION OF NAPHTHO[2,1-B]PYRANO[4,3-C]PYRIDAZIN-3-ONE DERIVATIVE
Mr. Mahmoud, STUDIES ON NOVEL HETEROCYCLIC RING-SYSTEMS - REACTIONS OF AMINOPHENYL)]-NAPHTHO[2,1-B]2,3-DIHYDROPYRAN-4-ONE WITH 2-MERCAPTOANILINE AND FORMATION OF NAPHTHO[2,1-B]PYRANO[4,3-C]PYRIDAZIN-3-ONE DERIVATIVE, Synthetic communications, 24(14), 1994, pp. 2057-2062
The reaction of 2-[p-(N,N'-dimethylaminophenyl)]-naphtho [2,1-b]-2,3-d
ihydropyran-4-one L with 2-mercaptoaniline 2 has been investigated The
yet unreported 6-(p-N,N'-dimethylaminophenyl)naptho [2,1-b]-pyrano-[3
,4-b] benzo-(4H)-1,4-thiazine 3 system has been synthesised and charac
terised on the basis of spectral and analytical data. A novel synthest
ic route to naphtho (2,1-b)-pyrano (4,3-c) pyridazin-3-one 6 is report
ed.