Process for producing quinazolin-4-one derivative,申请号US20040502734-传众专利搜索

Process for producing quinazolin-4-one derivative

申请公布号：US8367824(B2)

申请号：US20040502734

申请日期：2004.07.28

申请公布日期：2013.02.05

申请人：

UBE INDUSTRIES LTD.;NISHINO SHIGEYOSHI;HIROTSU KENJI;SHIMA HIDETAKA;HARADA TAKASHI;ODA HIROYUKI

发明人：NISHINO SHIGEYOSHI;HIROTSU KENJI;SHIMA HIDETAKA;HARADA TAKASHI;ODA HIROYUKI

分类号：C07D239/72;C07C201/08;C07C205/59;C07C205/60;C07C227/04;C07C229/56;C07C229/64;C07D239/88;C07D239/90

主分类号：C07D239/72

摘要：A process for producing a quinazolin-4-one compound having the formula: [wherein R1, R2, R3 and R4 each represents a group not participating in the below-mentioned reaction, and R1, R2, R3 and R4 can be combined together to form a ring] which comprises reacting an anthranilic acid derivative having the formula: [wherein R5 is a hydrogen atom or a hydrocarbyl group] with a formic acid derivative in the presence of an ammonium carboxylate.