Polyethylene glycol (PEG-400) as an efficient and recyclable reaction media for the synthesis of substituted 4-(1-aryl-2-nitroethyl)-3-methyl-1H-pyrazol-5- ol in catalyst free conditions

Ramakoteswara Rao, Chinta Vija

Abstract

Polyethylene glycol (PEG-400) was found to be an effective reaction medium for the one-pot synthesis of 4-(1-aryl- 2-nitroethyl)-3-methyl-1H-pyrazol-5-ol derivatives in good yields under mild reaction conditions. The use of PEG- 400 makes this method low cost, recyclable, and eco-friendly.