Solvent-free sonochemical one-pot three-component synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-triones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones
作者:Gaurav Shukla、Rajiv K. Verma、Girijesh K. Verma、Maya Shankar Singh
DOI:10.1016/j.tetlet.2011.10.136
日期:2011.12
A rapid and efficient one-pot three-component protocol for the synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-triones 4 and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones 6 has been developed by domino coupling of phthalhydrazide, 1,3-diketones, and aldehydes under solvent-free conditions at 80 °C as well as under solvent-free ultrasound irradiation at room temperature promoted by (S)-camphorsulfonic
一种快速高效的一锅三组分规程,用于合成2 H-吲唑并[2,1- b ]邻苯并-1,6,11-三酮4和1 H-吡唑并[1,2- b ]邻苯并-通过在80°C下无溶剂条件下以及(S)促进的室温下在无溶剂超声辐照下,将邻苯二甲酰肼,1,3-二酮和醛进行多米诺偶联,开发了5,10-二酮6。樟脑磺酸。