Cu(Ⅱ)-catalyzed Mannich-type–cyclization–oxidation tandem reactions:one-pot synthesis of 1,3,5-substituted pyrazoles from aldehydes,hydrazines and alkynes

【作者】 Pei Liu； Jin-heng Zhang； Zheng-hong Li； Heng-shan Wang； 潘英明；

【Author】 Pei Liu;Jin-heng Zhang;Zheng-hong Li;Heng-shan Wang;Ying-ming Pan;School of Chemistry and Chemical Engineering of Guangxi Normal University;

【机构】 School of Chemistry and Chemical Engineering of Guangxi Normal University；

【摘要】 <正>Attracting interest for the past several decades,the field of pyrazole synthesis is continuously and rapidly developing.An especially promising area of research is finding and utilizing a single catalyst that promotes more than one transformation in a selective manner.1 An appealing strategy toward this end is the development of novel tandem reactions,whereby sequential transformations can be performed without isolation or purification of更多还原