69025-38-3Relevant academic research and scientific papers
Electrochemical Intramolecular Dehydrogenative Coupling of N-Benzyl(thio)amides: A Direct and Facile Synthesis of 4H-1,3-Benzoxazines and 4H-1,3-Benzothiazines
Yu, Hui,Jiao, Mingdong,Huang, Ruohe,Fang, Xiaowei
, p. 2004 - 2009 (2018/11/23)
The electrochemical dehydrogenative cyclization of N-benzylamides was investigated with a Pt plate anode and graphite rod cathode in an undivided cell at room temperature. The oxidative degradation of the products was suppressed successfully and 4H-1,3-benzoxazines were obtained regardless of the substituents at the benzylic position. This method also allowed for the preparation of 4H-1,3-benzothiazines.
An Inverse Electron Demand Azo-Diels-Alder Reaction of o -Quinone Methides and Imino Ethers: Synthesis of Benzocondensed 1,3-Oxazines
Osipov, Dmitry V.,Osyanin, Vitaly A.,Khaysanova, Guzel D.,Masterova, Elvira R.,Krasnikov, Pavel E.,Klimochkin, Yuri N.
, p. 4775 - 4785 (2018/04/26)
We have studied the reactions of o-quinone methide precursors with imino ethers. The reaction provides a versatile route to substituted 1,3-benzoxazines. The proposed reaction mechanism involves the generation of the o-quinone methide intermediates, imino
