The reactivity of aryl alkyl ketone with a preheated mixture of dibromomethane and diethylamine is poor and gives an alpha-methylenation product in very low yield even under refluxing condition. It can be accelerated dramatically by microwave irradiation. Under microwave condition, the cyclic 1,3-dicarbonyls, aryl alkyl ketones, heteroaryl alkyl ketones and acyclic benzyl ketone give alpha-methylenation products in modest to good yields. (C) 2003 Elsevier Science Ltd. All rights reserved.
Mojtahedi; Saidi; Sharifi, Journal of Chemical Research - Part S, 2000, # 8, p. 380 - 381
A novel aminomethylation of silyl enol ethers with aminomethyl ethers catalyzed by iodotrimethylsilane or trimethylsilyl trifluoromethanesulfonate
作者:Akira Hosomi、Susumu Iijima、Hideki Sakurai
DOI:10.1016/s0040-4039(00)86885-9
日期:1982.1
Fe-Catalyzed Bisphosphorylation of Amino-2-en-1-ones with Trialkyl Phosphites
作者:Shengmei Guo、Kun Jie、Ling Huang、Zhebin Zhang、Yufeng Wang、Zhengjiang Fu、Hu Cai
DOI:10.1055/s-0037-1611803
日期:2019.6
A facile bisphosphorylation of amino-2-en-1-ones with trialkyl phosphites mediated by iron is developed. The reaction is considered to go through two Michael addition progresses. A variety of amino-2-en-1-ones are bisphosphorylated in high yields with functional group tolerance. In addition, the protocol of introduction of two different phosphates into one molecule is successful through a cascade reaction