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.
利用微波辐照实现了一系列新颖的含有吩噻嗪部分的吡唑的高效和有吸引力的区域选择性合成。 使用2D HMBC NMR技术作为有价值的工具,确定了所获得的区域异构体的明确结构分配。