A highly active catalyst system for the heteroarylation of acetone
作者:Ping Liu、Thomas J. Lanza、James P. Jewell、Carrie P. Jones、William K. Hagmann、Linus S. Lin
DOI:10.1016/j.tetlet.2003.09.176
日期:2003.12
A highly active catalyst system for the heteroarylation of acetone has been identified. The Coupling between the in situ generated tributyltin enolate of acetone and a variety of heteroaromatic bromides, chlorides, and triflates in the presence of this catalyst system provided arylacetones in good yields. (C) 2003 Elsevier Ltd. All rights reserved.
A facile, microwave-assisted, palladium-catalyzed arylation of acetone
作者:Harry R. Chobanian、Ping Liu、Marc D. Chioda、Yan Guo、Linus S. Lin
DOI:10.1016/j.tetlet.2006.12.060
日期:2007.2
We report an expedient method for the heteroarylation of acetone tinder tin-free conditions. The coupling is performed using the commercially available enol silane of acetone (2-trimethylsilyloxypropene) and a corresponding ary, bromide, chloride or triflate under microwave-assisted conditions, with tris(dibenzylideneacetonc)dipalladium (Pd-2(dba)(3)) or palladium acetate (Pd(OAc)(2)) and 2-(2',6'-dimethoxybiphenyl)dicyclohexylphosphine (S-Phos) as the catalyst system. Published by Elsevier Ltd.
Investigations on imidazoles 99. Synthesis and some conversions of esters of 4-nitro-5-imidazolylmalonic,-acetoacetic, and-cyanoacetic acids
作者:P. M. Kochergin、L. A. Reznichenko、R. N. Gireva、E. V. Aleksandrova