Thiono and dithio estes, LII: Reaction of dithiono malonates with N,N-dimethylformamide acetals
The reaction of the dithiono malonates 1 with the formamide acetals 2 leads to the 2-dialkylaminomethylene dithionomalonates 4 and the thiono acrylates 6. The condensation of 4 with hydrazines gives rise to the pyrazoles 7 and 8, with hydroxylamine sulfon
Hartke,Kraska
p. 57 - 60
(2007/10/02)
SYNTHESIS OF 2,5'-BIPYRIMIDINES FROM SUBSTITUTED 5-CYANOPYRIMIDINES
The Pinner method was applied to substituted 5-cyanopyrimidines to obtain 5-aminopyrimidines, which were condensed with acrolein derivatives to synthesize compounds that contain a 2,5-bipyrimidine fragment.
Mamaev, V. P.,Mikhaleva, M. A.,Shadrina, A. I.
p. 303 - 307
(2007/10/02)
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