公开(公告)号：US06407219B1

公开(公告)日：2002-06-18

申请号：US09889147

申请日：2001-09-28

申请人： Paul Bourdauducq

发明人： Paul Bourdauducq

IPC分类号： C07C25706

CPC分类号： C07C245/04 ,  C07C257/06 ,  C07C257/14

摘要： The invention concerns a method for preparing an azoiminoether hydrochloride which consists in reacting an azonitrile with an alcohol and hydrochloric acid in an aromatic solvent, wherein the molar ratio R=HCl/azonitrile is >2 when the alcohol is methanol and >3 when the alcohol is ethanol or a higher alcohol. The invention also concerns a method for preparing an azocarboxylic acid ester which consists in the synthesis of an azoiminoether hydrochloride by the inventive method and, hydrolysis in the presence of the resulting azoiminoether hydrochloride. Said methods enable to obtain liquid composition of azocarboxylic acid esters. The invention further concerns mixed azoiminoether salts of formula (II′). The invention also concerns mixed azoiminocarboxylic acid esters corresponding to the formula (III′).

摘要翻译： 本发明涉及一种制备偶氮二甲苯醚盐酸盐的方法，该方法包括使偶氮腈与醇和盐酸在芳族溶剂中反应，其中当醇为甲醇时，R = HCl /偶氮的摩尔比> 2，当醇 是乙醇或高级醇。 本发明还涉及一种制备偶氮羧酸酯的方法，其包括通过本发明方法合成偶氮二甲苯醚盐酸盐，并在所得的偶氮二甲苯醚盐酸盐存在下进行水解。 所述方法能够获得偶氮羧酸酯的液体组合物。 本发明还涉及式（II'）的混合偶氮仿生醚盐。 本发明还涉及对应于式（III'）的混合偶氮二羧酸酯。