公开(公告)号：US3850963A

公开(公告)日：1974-11-26

申请号：US33511473

申请日：1973-02-23

Applicant: STAMICARBON

Inventor： THOMA J ,  DEUMENS J ,  VERHEIJEN E

IPC: B01J23/00 ,  C07B61/00 ,  C07D311/20 ,  C11B9/00 ,  C07D7/26

CPC classification number: C07D311/20 ,  C11B9/008

Abstract: 2-(O=),3-R1,4-R2,5-R3,6-R4,7-R5,8-R6-5,6,7,8-TETRAHYDRO-

CHROMAN

WHEREIN EACH OF R2, R2, R3, R4, R5 AND R6 EACH INDEPENDENTLY REPRESENTS HYDROGEN OR A LOWER ALKYL, PROVIDED THAT THE TOTAL NUMBER OF CARBON ATOMS OF THE R1-R6 SUBMARIN COMPOUND FROM THE REACTION MIXTURE.
1. PROCESS FOR THE PREPARATION OF COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF DIHYDROCOUMARIN AND ALKYL SUBSTITUTED DERIVATIVES OF DIHYDROCOUMARIN COMPRISING HEATING TO A TEMPERATURE OF ABOUT 150 TO ABOUT 400*C. IN THE PRESENCE OF A CATALYST AMOUNT OF A DEHYDRATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PALLADIUM, A COMPOUND OF THE FORMULA:

公开(公告)号：US3780083A

公开(公告)日：1973-12-18

申请号：US3780083D

申请日：1972-02-14

Applicant: STAMICARBON

Inventor： DEUMENS J ,  STIJFS P

IPC: C07C20060101 ,  C07C121/02 ,  C07C121/34

CPC classification number: C07C255/00 ,  Y02P20/582

Abstract: SCHIFF BASES DERIVED FROM BUTANONE AND AN ALIPHATIC PRIMARY AMINE ARE CATALYSTS IN THE PREPARATION OF A-MONOCYANOETHYLATED BUTANONE BY REACTING ACRYLONITRILE WITH AT LEAST AN EQUIMOLAR QUANTITY OF ACRYLONITRILE IN THE PRESENCE OF AN ACID. THE A-MONO-CYANOETHYLATED BUTANONES, SUCH AS 4-METHYL-5-OXOHEXANE NITRILE AND 5-OXOHEPTANE NITRILE ARE PRODUCED WITH ONLY MINOR AMOUNTS OF CONTAMINANT''S THAT ARE EASILY REMOVED. THE A-MONO-CYANOETHYLATED BUTANONES ARE USEFUL FOR THE PREPARATION OF DIAMINES, KETOCARBOXYLIC ACIDS OR KETO-AMIDES.

公开(公告)号：US3856819A

公开(公告)日：1974-12-24

申请号：US37250773

申请日：1973-06-22

Applicant: STAMICARBON

Inventor： DEUMENS J ,  VERHEIJEN E ,  THOMA J

IPC: B01J23/00 ,  C07B61/00 ,  C07D311/08 ,  C07D311/10 ,  C07D311/14 ,  C07D7/26

CPC classification number: C07D311/08

Abstract: Coumarin, a useful flavoring agent resembling vanilla beans, is produced by contacting dihydrocoumarin with a small quantity of a dehydrogenation catalyst such as palladium or platinum at elevated temperatures, optionally in the presence of oxygen. The alkylated dihydrocoumarin compounds may also be processed according to the disclosed procedure to produce the corresponding alkyl substituted products.

Abstract translation: 香豆素是一种类似香草豆的有用调味剂，可通过任选在氧气存在下使二氢香豆素与少量脱氢催化剂如钯或铂在升高的温度下接触来生产。 烷基化的二氢香豆素化合物也可以根据所公开的方法进行处理以产生相应的烷基取代的产物。

公开(公告)号：US3780082A

公开(公告)日：1973-12-18

申请号：US3780082D

申请日：1971-08-05

Applicant: STAMICARBON

Inventor： DEUMENS J ,  GROEN S

IPC: C07C20060101 ,  C07C121/02

CPC classification number: C07C255/00

Abstract: SCHIFF BASES DERIVED FROM ACETONE AND ALIPHATIC LOWER ALKYL PRIMARY AMINE ARE EMPLOYED IN THE REACTION OF ACRYLONITRILE AND AN EXCESS OF ACETONE IN A LIQUID MEDIUM IN THE DISCLOSED PROCESS FOR THE PREPARATION OF 4-OXOCAPRONITRILE. THE CATALYSTS HAVE A BOILING POINT BELOW 150*C. AND ARE EASILY RECOVERED FROM THE REACTION MIXTURE. THE PRODUCT 4-OXOCAPRONITRILE IS A STARTING MATERIAL IN THE PREPARATION OF A-PIPECOLINE.

公开(公告)号：US3728353A

公开(公告)日：1973-04-17

申请号：US3728353D

申请日：1970-07-10

Applicant: STAMICARBON

Inventor： STIJFS P ,  GROEN S ,  DEUMENS J

IPC: C07D295/02 ,  C07D295/027 ,  C07D29/06

CPC classification number: C07D295/027

Abstract: A process for the preparation of a carbon-substituted piperidine by the hydrogenation of a N-substituted gamma -cyanoketoimine in the presence of a hydrogenation catalyst, is disclosed. A primary amine having the same substituent as the nitrogen atom of the starting gamma -cyanoketoimine is receovered in high yield from the reaction mixture. The carbon substituted piperidines thus produced are useful as starting materials for the production of herbicides or pharmaceuticals.

Abstract translation: 公开了在氢化催化剂存在下通过氢化N-取代的γ-氰基酮亚胺制备碳取代的哌啶的方法。 具有与起始γ-氰基酮亚胺的氮原子相同的取代基的伯胺以高产率从反应混合物中回收。 如此制备的碳取代的哌啶可用作生产除草剂或药物的原料。