芳香族和脂肪族醛与1 H-茚-1,3(2 H)-二酮和溴化氰(BrCN)的一种新的,快速且简单的单锅环丙烷化反应被开发出来,用于合成3'-(芳基[烷基] )-双螺[[indan-2,1'-cyclopropane-2',2''-indan] -1,1'',3,3''tetrone在碱性条件下短时间内(约15 s)表现出优异的产量媒体。使用IR,1 H NMR和13 C NMR光谱技术表征所有结构。
Selective Formation of Spiro Dihydrofurans and Cyclopropanes Through Unexpected Reaction of Aldehydes with 1,3-Dicarbonyl Compounds
作者:Guan-Wu Wang、Jie Gao
DOI:10.1021/ol900451d
日期:2009.6.4
5-dimethylcyclohexane-1,3-dione and 1,3-indandione to selectively afford spirodihydrofuran and cyclopropane derivatives, promoted by molecular iodine and dimethylaminopyridine under mechanical milling conditions, has been demonstrated. The products were obtained in good to excellent yields. A possible mechanism of this unusual reaction process is proposed.