K₂CO₃‐Mediated Regioselective Synthesis of Isoxazoles and Pyrazolines.

Abstract

Isoxazole derivatives R 0240 K 2 CO 3 -Mediated Regioselective Synthesis of Isoxazoles and Pyrazolines. -An environmentally friendly and highly regioselective approach to 3,5-diarylisoxazoles and 1,3,5-triarylpyrazolines is reported. -(KIDWAI*, M.; KUKREJA, S.; THAKUR, R.; Lett. Org. Chem. 3 (2006) 2, 135-139; Dep. Chem., Univ. Delhi, Delhi 110 007, India; Eng.) -Jannicke 39-140

An improved synthesis of 1,3,5-triaryl-2-pyrazolines in acetic acid aqueous solution under ultrasound irradiation

“…Recently, K 2 CO 3 -mediated microwave irradiation has been shown to be an efficient method for the synthesis of pyrazolines. [9]…”