A novel, chemoselective one-pot procedure for the preparation of 3H-spiro[isobenzofuran-1,2′-pyrrole]-3,3′(1′H)-dione derivatives via oxidative cleavage of 3a,8b-dihydroxyindeno[1,2-b]pyrroles
作者:Gholam Hossein Mahdavinia、Mohammad R. Mohammadizadeh、Noushin Ariapour、Maryam Alborz
DOI:10.1016/j.tetlet.2013.10.156
日期:2014.3
A one-pot, efficient and chemoselective procedure for the synthesis of new 3H-spiro[isobenzofuran-1,2′-pyrrole]-3,3′(1′H)-dione derivatives has been developed which involves room temperature oxidative cleavage of 3a,8b-dihydroxyindeno[1,2-b]pyrroles themselves synthesized from the reaction of ninhydrin and enaminones in 30% ethanol. A reasonable mechanism is proposed for the oxidation reaction based
的单釜,新3的合成效率和化学选择性过程ħ -螺[异苯并呋喃-1,2'-吡咯] -3,3' - (1' ħ) -二酮衍生物已被开发涉及室温下的氧化裂解茚三酮和烯胺酮在30%乙醇中的反应合成的3a,8b-二羟基茚并[1,2- b ]吡咯本身。根据本研究的结果和我们先前的相关工作,提出了一种合理的氧化反应机理。