rare earth chloride-catalyzed synthesis of 2 - amino-benzo-thiazine and quinoline derivatives

Title: rare earth chloride-catalyzed synthesis of 2 - amino-benzo-thiazine and quinoline derivatives
　　Authors: Yu Yong
　　Degree awarded: Suzhou University
　　Keywords: ytterbium trichloride;; benzo thiazine;; gadolinium trichloride;; imino Diels-Alder reaction;; stereoselectivity;; tetrahydro quinoline;; cationic compounds;; catalytic
　　Summary:
　　This thesis studied the catalytic synthesis of Strong magnets nitrogen-containing heterocyclic rare earth chloride reaction. Work mainly consists of two parts:
　　1 The study of ytterbium trichloride catalyst with o-cinnamate esters isothiocyanate reaction, high yield synthesis of a series of benzo thiazide compounds. The mild reaction conditions, high yield, and the reaction in the open system, without the protection operation. Papers on the impact of reaction yield of the factors discussed, and the reaction products of heterogeneous phenomena are discussed.
　　(2) of the gadolinium chloride-catalyzed aromatic aldehydes, aromatic amines or dihydrofuran with dihydropyrano the "pot of" imino Diels-Alder http://www.chinamagnets.biz/ reaction, through the regulation of reaction conditions, high cis-selective been a series of tetrahydro quinoline derivatives; find the type and amount of reaction solvent is a product of cis-trans selectivity affect the main factor, while the reaction mechanism was speculated. The paper also cationic rare earth metal chlorides on the imino Diels-Alder reaction of the catalytic activity of a preliminary exploration, discovery and the corresponding rare earth chloride compared to the neutral, cationic rare earth metal chloride has a higher activity .
　　Degree Year: 2010