126940-55-4Relevant articles and documents
A novel one-pot synthesis of substituted 5-benzoyl- and 5-acetylamino-1H,6H-pyranopyrazolones
Ahluwalia, Vinod K.,Garg, Vijay K.,Sharma, Mukesh K.,Sharma, R.
, p. 960 - 962 (2007/10/02)
A convenient one-pot synthesis of some 5-benzoyl- and 5-acetylamino-1H,6H-pyranopyrazolones (4) by the reaction of 2-pyrazolin-5-ones (1) with hippuric/aceturic acid and triethyl orthoformate in the presence of acetic anhydride, in good yield (75-8