Conjugated azoalkenes. Part XI. Direct synthesis of substituted pyrazoles and 4-triphenylphosphoranylidene-4,5-dihydropyrazol-5-ones by heterocyclization of some zwitterionic 1,4-adducts between conjugated azoalkenes and triphenylphosphine
Orazio A. Attanasi, Paolino Filippone, Amedeo MeiVolume:
48
Year:
1992
Language:
english
Pages:
8
DOI:
10.1016/s0040-4020(01)88729-9
File:
PDF, 492 KB
english, 1992