Synthesis of novel pyrazoles incorporating a phenothiazine moiety: unambiguous structural characterization of the regioselectivity in the 1,3-dipolar cycloaddition reaction using 2D HMBC NMR spectroscopy
作者:Ahmed E.M. Mekky、Tamer S. Saleh、Abdullah S. Al-Bogami
DOI:10.1016/j.tet.2013.06.028
日期:2013.8
An efficient and attractive regioselective synthesis of a series of novel pyrazoles containing a phenothiazine moiety was achieved utilizing microwave irradiation. Unambiguous structural assignment of the obtained regioisomers was determined utilizing 2D HMBC NMR techniques as a valuable tool.