公开(公告)号：DE2256663A1

公开(公告)日：1974-05-22

申请号：DE2256663

申请日：1972-11-18

Applicant: BASF AG

Inventor： EILINGSFELD HEINZ DR ,  EISFELD WOLFGANG DR ,  PATSCH MANFRED DR ,  SCHAFFNER ERNST DR

IPC: C07D307/77 ,  C07C51/16 ,  C07C51/265 ,  C07C51/275 ,  C07C51/54 ,  C07C51/56 ,  C07C65/34 ,  C09B5/24 ,  C07C65/20

Abstract: A process for the production of an anthraquinone-2,3-dicarboxylic anhydride bearing chlorine as a substituent in the 1-position or in the 1- and 4-positions by oxidation of a trimethyl compound of the formula:

公开(公告)号：DE2256662A1

公开(公告)日：1974-05-22

申请号：DE2256662

申请日：1972-11-18

Applicant: BASF AG

Inventor： EILINGSFELD HEINZ DR ,  PATSCH MANFRED DR ,  SCHAFFNER ERNST DR ,  SCHEFCZIK ERNST DR

IPC: A01N35/04 ,  C07C45/00 ,  C07C45/63 ,  C07C49/813 ,  C07C67/00 ,  C09B11/00 ,  C07C49/80

公开(公告)号：DE2236875A1

公开(公告)日：1974-03-28

申请号：DE2236875

申请日：1972-07-27

Applicant: BASF AG

Inventor： ENGELBACH HEINZ DR ,  WISTUBA HERMANN DR ,  SCHAFFNER ERNST DR ,  EILINGSFELD HEINZ DR

IPC: B01J23/22 ,  C07C51/265 ,  C07C63/18

Abstract: Title cpds are made by oxidising aromatic cpds contg. >=2 neighbouring 1-4C aliphatic residues and >=1 halogen atom in the ring, in the gas phase at 250-550 degrees C in the presence of air and of catalysts contg. V. in oxidised form. Process is esp. useful for producing halophthalic anhydrides from 3- and 4-chloro-1,2-dimethylbenzene.

公开(公告)号：DE2020866A1

公开(公告)日：1971-11-18

申请号：DE2020866

申请日：1970-04-29

Applicant: BASF AG

Inventor： EILINGSFELD HEINZ DR ,  SCHAFFNER ERNST DR

IPC: C07C255/58

Abstract: H3PO4-saturated silica gel of 100 - 400 sq.m./g specific surface is used as catalyst for preparation of hydroxy- and aminobenzonitriles (I) (where X is OH or amino), by reaction of hydroxy- or aminobenzoates (II): (where R is 1 - 4C alkyl) in the gas-phase at 350 - 450 degrees C.