An environmentally benign approach for the efficient microwave-assisted synthesis of new 2,2′-pyridine derivatives in water by the multicomponent reaction of an aldehyde, indane-1,3-dione, 2-acetylpyridine, and ammonium acetate is reported. It is an efficient and promising synthetic strategy for the construction of the 2,2′-bipyridine skeleton.
An efficient and expeditious microwave-assisted synthesis of 4-azafluorenone derivatives and related compounds is accomplished via a multi-component reaction of an aldehyde, 1,3-indanedione, an arone and ammonium acetate. It is an efficient and promising synthetic strategy to build indenopyridine skeleton. (c) 2006 Elsevier Ltd. All rights reserved.
Intermolecular Reductive Cyclodimerization of Cyclic α,β-Unsaturated Ketones Promoted by a Low-Valent Titanium Reagent: A Facile Synthesis of Some New Spiro Compounds
作者:Da-Qing Shi、Guo-Lan Dou、Zheng-Yi Li、Chun-Ling Shi、Xiao-Yue Li、Hong Jiang、Sai-Nan Ni、Shun-Jun Ji
DOI:10.1055/s-2007-983707
日期:2007.6
β-unsaturated ketones such as 2-benzylideneindan-1-ones, 2-benzylidene-1 -tetralones, 3-benzylidenechroman-4-ones, and 3-benzylidenethiochroman-4-ones induced by a low-valent titanium reagent were studied. Some new spiro compounds were prepared in good yields under neutral and mild conditions. High stereoselectivity was achieved and the stereochemistry of the products was confirmed by X-ray diffraction
α,β-不饱和酮如 2-benzylideneindan-1-ones、2-benzylidene-1-tetralones、3-benzylidenechroman-4-ones 和 3-benzylidenethiochroman-4-ones 的分子间还原环二聚反应对低价钛试剂进行了研究。一些新的螺环化合物在中性和温和条件下以高收率制备。实现了高立体选择性,并通过 X 射线衍射分析证实了产物的立体化学。
MOUSSA, H. H.;SHAFIK, N. A., EGYPT. J. CHEM., 1983, 26, N 6, 533-540