作者:S. I. Zav'yalov、O. F. Dorofeeva、E. E. Rumyantseva、A. G. Zavozin
DOI:10.1007/bf02226529
日期:1995.2
Dihydroresorcinol and dimedone are condensed with aromatic amines at room temperature under the action of CiSiMe3-DMFA system to give 3-anilino-2-cyclohexene derivatives in 70–90% yield.
Regioselective synthesis of 6-nitroindole derivatives from enaminones and nitroaromatic compounds <i>via</i> transition metal-free C–C and C–N bond formation
Few methods are known for the synthesis of nitroindole derivatives. A simple and practical Cs2CO3-promoted method for the synthesis of 6-nitroindole derivatives from enaminones and nitroaromatic compounds has been developed. Two new C–C and C–N bonds were formed in a highly regioselective manner under transition metal-free conditions.
已知很少有合成硝基吲哚衍生物的方法。开发了一种简单实用的Cs 2 CO 3促进的烯胺酮和硝基芳族化合物合成6-硝基吲哚衍生物的方法。在无过渡金属条件下,两个新的 C-C 和 C-N 键以高度区域选择性的方式形成。
Iodine(III)-Promoted Ring Contractive Cyanation of Exocyclic β-Enaminones for the Synthesis of Cyanocyclopentanones
作者:Dhananjay Bhattacherjee、Vandna Thakur、Saurabh Sharma、Sandeep Kumar、Richa Bharti、C. Bal Reddy、Pralay Das
DOI:10.1002/adsc.201601208
日期:2017.7.3
A highly efficient hypervalent iodine‐promoted regiocontrolled ring contractive cyanation (RCC) reaction of exocyclic β‐enaminones for the synthesis of cyanocyclopentanone (CCP) was demonstrated at ambient temperature with a wide substrate scope. The methodology offers a facile technique to construct an amino carbonitrile‐containing quaternary stereocenter at the α‐position of cyclopentanone in good