公开(公告)号：US3813377A

公开(公告)日：1974-05-28

申请号：US19504371

申请日：1971-11-02

Applicant: SNAM PROGETTI

Inventor： MAURI M ,  MOGGI P ,  ROMANO U

IPC: C07D209/08 ,  C07D209/86 ,  C07D27/64

CPC classification number: C07D209/86 ,  C07D209/08

Abstract: THE PRESENT INVENTION PROVIDES A NOVEL OXIDATIVE DEHYDROCYCLIZATION PROCESS WHEREIN IMINES SUCH AS N-ETHYLIDENECYLOHEXYLAMINE ARE USED TO PREPARE INDOLE BY A REACTION IN THE PRESENCE OF OXYGEN AND A CATALYST SUCH AS SILICA.

公开(公告)号：US3824252A

公开(公告)日：1974-07-16

申请号：US17786671

申请日：1971-09-03

Applicant: SNAM PROGETTI

Inventor： MAURI M ,  MOGGI P ,  ROMANO U

IPC: C07D209/08 ,  C07D27/56

CPC classification number: C07D209/08

Abstract: PROCESS FORPRODUCING INDOLE AND ITS DERIVATIVES BY OXIDIZING AROMATIC AMINES WITH AN ORAGANIC NITROCOMPOUND AT TEMPERATURES RANGING FROM 300*C. TO 700*C. IN THE VAPOR PHASEIN THE PRESENCE OF CONTACT MASSES.

公开(公告)号：US3847937A

公开(公告)日：1974-11-12

申请号：US25288572

申请日：1972-05-12

Applicant: SNAM PROGETTI

Inventor： MOGGI P ,  ROMANO U

IPC: C07D209/04 ,  C07D209/08 ,  C07D215/04 ,  C07D27/56

CPC classification number: C07D215/04 ,  C07D209/08

Abstract: 1. A PROCESS FOR PREPARING INDOLE BY PYROLYSIS, COMPRISING SUBJECTING 1,1''-DIPHENYLAMINOETHANE TO A TEMPERATURE OF ABOUT 500*C. TO ABOUT 700*C. FOR A TIME FROM ABOUT 2 TO ABOUT 5 SECONDS.

公开(公告)号：US3845072A

公开(公告)日：1974-10-29

申请号：US19492671

申请日：1971-11-02

Applicant: SNAM PROGETTI

Inventor： ROMANO U ,  MAOGGI P ,  MAURI M

IPC: C07D209/08 ,  C07D27/56

CPC classification number: C07D209/08

Abstract: A-N=C(-R)-B

WHEREIN N IS NITROGEN; C IS CARBONIUM; R IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN, LOWER ALKYL, LOWER ALKENYL AND CARBOCYCLIC MONOCYCLIC ARYL; A AND B ARE MEMBERS OF THE GROUP CONSISTING OF LOWER ALKYL LOWER ALKENYL, MONOCYCLIC CARBOCYCLIC ARLY AND ARALKYL REPRESENTED BY CH3C6H.4 AND C2H5H.4, ARE CAUSED TO REACT INTHE VAPORR PHASE BY HEATING SAID OXYGEN AND IMINE TOGETHER IN THE MOLAR RANGE FROM 0.2:01 TO 10:1 TO A TEMPERATURE IN THE RANGE OFF 300* TO 800* C. FOR A TIME RANGING FROM 0.1 TO 20 SECONDS IN THE PRESENCE OF ACTIVATED SILICA AND STEAM.
1. A PROCESS FOR THE PRODUCTION OF HIGH YIELDS OF INDOLE AND ALKYL, ARALKYL AND PHENYL SUBSTITUTED INDOLES THROUGH THE OXIDATIVE DEHYDROCYCLIZATION OF IMINES WHEREIN OXYGEN AND THE CORRESPONDING IMINE RE MULA