138211-86-6Relevant articles and documents
NEW METHOD FOR OBTAINING 5-PYRAZOLONES
Magedov, I. V.,Smushkevich, Yu. I.
, p. 741 - 744 (1991)
A new preparative method for obtaining 5-pyrazolones from N,N'-dimethyl-N,N'-diacylhydrazines that is based on the intramolecular formation of a C(3)-C(4) bond in the pyrazolone molecule was developed.
A new method for synthesis of 1H-pyrazol-3(2H)-ones
Magedov,Smushkevich
, p. 845 - 848 (2007/10/02)
A new preparative method is reported for the synthesis of 4,5-disubstituted 1,2-dimethyl-1H-pyrazol-3(2H)-ones 5a-e,g-k from N,N-diacyl-N,N'-dimethylhydrazines 1a-e,g,h,j,k. The method is based on the intramolecular formation of thc 4,5-bond in the pyrazo