CAS: 51463-14-0; 6-Methoxyisoquinolin-3(2H)-One

相似化合物

55086-31-2 55086-53-8 1698394-30-7

专利信息

专利号:US-3954771-A
优先权日:1972-06-16
标题 :Process for the preparation of 2H-3-isoquinolones
发明人：GEERTS JEAN-PIERRE JULES; LINZ RAYMOND ARMAND
权利人:UCB SA
摘要:A process for the preparation of 2H-3-isoquinolones having the formula ##SPC1## n Wherein R 1 and R 2 are each hydrogen, halogen, lower alkyl, lower alkoxy, aryl, haloaryl, alkylaryl or alkoxyaryl; R 3 and R 4 are each hydrogen, lower alkyl, lower alkoxyalkyl, lower alkenyl, lower alkynyl, cycloalkyl, aryl, aralkyl, or halo-aralkyl, which comprises cyclizing an N-formyl-2-phenyl-acetamide of the formula ##SPC2## n Wherein R 1 , R 2 , R 3 and R 4 have the same meaning as above, with a cyclodehydration agent. Said 2H-3-isoquinolones are useful as starting materials e.g. in the synthesis of 1,4-dihydro-1,4-etheno-isoquinolin-3(2H)-ones which are valuable chemotherapeutic agents in the treatment of disorders of the central nervous system, such as troubles of wakefulness, disorders of equilibrium and vertigo.