78999-99-2Relevant academic research and scientific papers
Phase-transfer catalyzed alkylation and cycloalkylation of 3-substituted-1H-pyrazol-2-in-5-ones in the absence or presence of carbon disulphide
Khalil,Hassan,Mohamed,El-Sayed
, p. 479 - 496 (2005)
PTC-alkylation of 3-substituted-1H-pyrazol-2-in-5-ones by different organohalogen reagents at 25°C in the presence of tetrabutylammonium bromide as-catalyst was investigated either in the absence or presence of CS 2. This work aims to study the comparative reactivity of N-versus O-versus C-alkylation and cycloalkylation. Copyright Taylor & Francis Inc.
PHOTOCHEMICAL BENZYL MIGRATION IN 3-PYRAZOLIN-5-ONES
Singh, Gurbakhsh,Singh, Devender,Ram, Ram Nath
, p. 2213 - 2216 (2007/10/02)
The 3-pyrazolin-5-ones (1) undergo light induced rearrangement by N -> O and N -> C4 benzyl migrations.A free radical mechanism is proposed.
