公开(公告)号：US3829439A

公开(公告)日：1974-08-13

申请号：US27025772

申请日：1972-07-10

申请人： HOECHST AG

发明人： SPIETSCHKA E ,  LANDLER J

IPC分类号： C09B57/14 ,  C07D65/16

CPC分类号： C09B57/14

摘要： PROCESS FOR PREPARING COMPOUNDS OF THE BENZOTHIOZANTHENE SERIES, WHEREIN COMPOUNDS OF THE 1-(2''-AMINOPHENYLMERCAPTO)NAPHTHALENE SERIES OR OF THE 1-PHENYLMERCAPTO-8-AMINO-NAPHTHALENE SERIES ARE REACTED IN A N,N-DIALKYLATED ACID AMIDE WITH COMPOUNDS THAT YIELD NITROSYL GROUPS AND THE DIAZONIUM COMPOUNDS SO OBTAINED ARE HEATED IN THE PRESENCE OF COPPER OR COPPER SALTS. THIS PROCESS IS SUITED FOR ALL COMPOUNDS WHICH CONTAIN THE BENZOTHIOZANTHENE RING, INDEPENDENTLY OF THEIR SUBSTITUENTS. THE PRODUCTS OBTAINED BY THIS PROCESS HAVE A MARKEDLY HIGHER PURITY AND ARE OBTAINED IN A HIGHER YIELD ARE COMPARED TO TO OTHER PROCESSES.

公开(公告)号：US3772303A

公开(公告)日：1973-11-13

申请号：US3772303D

申请日：1971-08-05

申请人： HOECHST AG

发明人： SPIETSCHKA E ,  LANDLER J ,  WAGER D

IPC分类号： C07D471/22 ,  C09B57/12 ,  C09B67/48 ,  C07D49/40

CPC分类号： C07D471/22 ,  C09B57/12 ,  C09B67/0025

摘要： THE PRESENT INVENTION PROVIDES A NAPHTHOYLENE-BISBENZIMIDAZOLE PIGMENT IN A NEW AND VALUABLE B-MODIFICATION, WHICH IS CHARACTERIZED BY AN X-RAY DIFFRACTION PATTERN WITH MAXIMUMS OF HIGH INTENSITY AT THE DIFFRACTION ANGLES OF 4.3*, 6.65* AND 13.45* AND MAXIMUMS OF MEDIUM INTESITY AT THE DIFFRACTION ANGLES OF 4.8*, 12.1* AND 14.45*, MEASURED WITH CU-K A-IRRADIATION. THE INVENTION FURTHERMORE PROVIDES A PROCESS FOR THE MANUFACTURE OF THE ABOVE SPECIFIED PIGMENT, WHEREIN CRUDE CIS-NAPHTHOYLENE-BIS-BENZIMIDAZOLE IS HEATED IN WATER AND/OR A SOLVENT TO TEMPERATURES IN THE RANGE OF ABOUT 100* TO 250* AND THE PIGMENT THUS OBTAINED IS ISOLATED IN THE USUAL MANNER.

公开(公告)号：US3828072A

公开(公告)日：1974-08-06

申请号：US27018872

申请日：1972-07-10

申请人： HOECHST AG

发明人： SPIETSCHKA E ,  LANDLER J

IPC分类号： C09B5/24 ,  C09B57/14

CPC分类号： C09B57/14 ,  C09B5/2427

摘要： PROCESS FOR PREPARING COMPOUNDS OF THE BENZOTHIOXANTHENE SERIES, WHEREIN CIOMPOUNDS OF THE 1-(2''-AMINOPHENYLMERCAPTO)-NAPHTHALENE SERIES OR OF THE 1-PHENYLMERCAPTO=8-AMINONAPHTHALENE SERIES ARE REACTED IN TERTIARY AMINES WITH COMPOUNDS YIELDING NITROSYL GROUPS AND THE DIAZNIUM COMPOUNDS SO OBTAINED ARE HEATED. THIS PROCESS IS SUITED FOR ALL COMPOUNDS WHICH CONTAIN THE BENZOTHIOXANTHENE RING, INDEPENDENTLY OF THEIR SUBSTIUENTS. THE PRODUCTS OBTAINED BY THIS PROCESS HAVE A MARKEDLY HIGHER PURITY AND ARE OBTAINED IN A HIGHER YIELD AS COMPARED TO OTHER PROCESSES.

公开(公告)号：US3812130A

公开(公告)日：1974-05-21

申请号：US27433172

申请日：1972-07-24

申请人： HOECHST AG

发明人： LANDLER J ,  SPIETSCHKA E

IPC分类号： C07D221/14 ,  C07D39/00

CPC分类号： C07D221/14

摘要： PROCESS FOR PREPARING NAPHTHALENE-1,8-DICARBOXYLIC ACIDIMIDE, WHEREIN SOLID NAPHTHALENE-1,8-DICARBOXYLIC ACIDANHYDRIDE IS REACTED WITH GASEOUS AMMONIA AT ELEVATED TEMPERATURES. THIS PROCESS YIELDS NAPHTHALENE-1,8-DICARBOXYLIC ACID IMIDE IN AN ALMOST QUANTITATIVE YIELD AND IN A HIGH PURITY, SO THAT IT MAY BE DIRECTLY USED FOR THE PREPARATION OF PERYLENE-TETRACARBOXYLIX ACID-DIIMIDE PIGMENTS.

公开(公告)号：US3775434A

公开(公告)日：1973-11-27

申请号：US3775434D

申请日：1971-05-20

申请人： HOECHST AG

发明人： SPIETSCHKA E ,  LANDLER J

IPC分类号： C09B3/14 ,  C09B67/10 ,  C07D7/46

CPC分类号： C09B67/0014 ,  C09B3/14

摘要： FINISHING PROCESS FOR IMPROVING THE PIGMENT PROPERTIES OF 3,4,9,10-PERYLENE-TETRACARBOXYLIC ACID DIANHYDRIDE BY PRECIPITATING THE FREE ACID THEREOF FROM AN AQUEOUS ALKALINE SOLUTION OF A SALT OF THE ACID, HEATING THE PRECIPITATED ACID IN AN ORGANIC SOLVENT AT ELEVATED TEMPERATURE TO FORM THE DIANHYDRIDE AND ISOLATING THE DIANHYDRIDE.