REGIOSPECIFIC AND REGIOSELECTIVE 1,3-DIPOLAR CYCLOADDITION OF DIPOLAR REAGENTS TO UNSYMMETRICAL BISOLEFINIC KETONES IN THE PRESENCE OF CHLORAMINE-T (CAT)
作者:V. Padmavathi、K. Venugopal Reddy、A. Padmaja、D. Bhaskar Reddy
DOI:10.1081/scc-120003614
日期:2002.1
ABSTRACT The reaction of 1,5-diaryl-3-methyl-1,4-pentadien-3-one with araldehyde phenylhydrazone/araldoxime in the presence of chloramine-T proceeds regiospecifically in MeOH and regioselectively in AcOH leading to mono- and bis-pyrazolines/ isoxazolines.
摘要 在氯胺-T 存在下,1,5-二芳基-3-甲基-1,4-戊二烯-3-酮与芳醛苯腙/芳醛肟的反应在MeOH 中区域特异性地进行,在AcOH 中区域选择性地产生单-和双-吡唑啉/异恶唑啉。