公开(公告)号：US3773784A

公开(公告)日：1973-11-20

申请号：US3773784D

申请日：1970-10-16

Applicant: SNAM PROGETTI

Inventor： MAURI M ,  MILANESE S ,  MOGGI P

IPC: B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J23/84 ,  B01J23/843 ,  B01J27/00 ,  B01J27/02 ,  C07B61/00 ,  C07D209/04 ,  C07D209/08 ,  C07D307/79 ,  C07D333/54 ,  C07D333/72 ,  C07D27/56 ,  C07D5/32 ,  C07D63/20

CPC classification number: C07D307/79 ,  B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J23/84 ,  B01J23/8435 ,  B01J27/02 ,  C07D209/04 ,  C07D209/08 ,  C07D333/54

Abstract: INDOLES, BENZOTHIOPHENES AND BENZOFURANS ARE PREPARED BY OXIDATIVE DEHYDROCYCLIZATION OF SUBSTITUTED AROMATIC COMPOUNDS IN THE PRESENCE OF AN OXYGEN-CONTAINING GAS AND AN ACTIVATED SILICA CATALYST.