公开(公告)号：CA1067100A

公开(公告)日：1979-11-27

申请号：CA243606

申请日：1976-01-15

Applicant: STAMICARBON

Inventor： KLEIN JOSEPH F M ,  STIJFS PETRUS A M J ,  THOMA JOZEF A

IPC: B01J31/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/74 ,  C07C49/613 ,  C07C49/653 ,  C07C67/00 ,  C07C49/27

Abstract: 2-(1-cyclohexenyl)-cyclohexanone is prepared by condensation of cyclohexanone using a macro-porous ion exchange resin such as Lewatite SPC 118 W or equivalent at temperatures not exceeding 125 .degree.C., provided that the conversion reaction is maintained below 50 %, preferably below 35 %. The reaction mixture is distilled at atmospheric pressure in the absence of the ion exchange resin and the desired product is recovered in substantially high yields generally greater than 95 %.

公开(公告)号：CA1040637A

公开(公告)日：1978-10-17

申请号：CA216086

申请日：1974-12-16

Applicant: STAMICARBON

Inventor： THOMA JOZEF A ,  STIJFS PETRUS A M J

IPC: C07D215/02 ,  C07D215/04 ,  C07D215/06 ,  C07D217/02

Abstract: In a process for treating 2-(beta-cyanoethyl)-cyclohexanones with a dehydrogenation catalyst to produce the corresponding quinolines, the improvement comprising passing the 2-(beta-cyanoethyl)-cyclohexanone over a dehydrogenation catalyst at temperatures below 230.degree.C and thereafter contacting tha resulting reaction product, in the gaseous state and in the presence of hydrogen, at a temperature of over 230.degree.C.

公开(公告)号：CA952529A

公开(公告)日：1974-08-06

申请号：CA107571

申请日：1971-03-12

Applicant: STAMICARBON

Inventor： GROEN SIEMEN H ,  DEUMENS JOHANNES J M ,  STIJFS PETRUS A M J

IPC: C07C209/48 ,  C07C209/52 ,  C07D295/02 ,  C07D295/027 ,  C07D295/033

Abstract: 1327335 Process for making piperidines STAMICARBON NV 19 April 1971 [12 March 1970] 23823/71 Heading C2C The invention comprises hydrogenating an N-substituted-4-cyanoaldimine, optionally in the presence of ammonia and a solvent, to afford piperidine or a C-substituted piperidine and a primary amine carrying the same substituent on the N-atom as is present on the N-atom of the aldimine. The examples describe the conversion of: N-cyclohexyl-4-cyano-2,2- dimethylbutyraldimine to 3,3-dimethylpiperidine, cyclohexylamine and 1,5-diamino-2,2-dimethylpentane; N - hexyl - 4 - cyano - 2,2 - dimethylbutyraldimine to 3,3-dimethylpiperidine, hexylamine and 1,5 - diamino - 2,2 - dimethylpentane; N - cyclohexyl - 4 - cyanobutyraldimine to piperidine, cyclohexylamine and 1,5-diaminopentane; N - cyclohexyl - 4 - cyano - 2 - ethyl - butyraldimine to 3 - ethyl - piperidine, cyclohexylamine and 2-ethyl-1,5-diaminopentane; N - hexyl - 2,2 - dimethyl - 4 - cyanobutyraldimine to 3,3 - dimethylpiperidine, 1 - hexyl - 3,3 - dimethylpiperidine and hexylamine; and N-cyclohexyl-4-cyano-2-propylbutyraldimine to 3-propylpiperidine, cyclohexylamine and 1-cyclohexyl-3-propylpiperidine

公开(公告)号：CA1053687A

公开(公告)日：1979-05-01

申请号：CA218341

申请日：1975-01-21

Applicant: STAMICARBON

Inventor： THOMA JOZEF A ,  STIJFS PETRUS A M J

IPC: C07D311/08 ,  C07D311/10 ,  C07D311/12 ,  C07D311/14 ,  C07D311/16 ,  C07D311/18

Abstract: Contaminated coumarin optionally alkylated, is purified by treatment with 0.001 to 1 mole equivalent of a solution of an inorganic base or a salt giving a similar basic reaction at a temperature of 20-150 .degree.C, the coumarin containing layer so formed is washed with water at 20-150 .degree.C and the purified coumarin is recovered. Coumarin so purified has an extremely high purity, generally below 100.degree. Hazen and preferably below 70.degree. Hazen, and is useful directly in the perfume and fragrance industry.

公开(公告)号：CA1051035A

公开(公告)日：1979-03-20

申请号：CA227492

申请日：1975-05-21

Applicant: STAMICARBON

Inventor： KLEIN JOSEPH F M ,  STIJFS PETRUS A M J ,  THOMA JOZEF A

IPC: C07C37/72 ,  C07C27/00 ,  C07C37/68 ,  C07C37/86 ,  C07C39/15 ,  C07C67/00 ,  C07C37/28

Abstract: PROCESS FOR RECOVERY OF ORTHO-PHENYLPHENOL A process for purifying ortho-phenylphenol which is admixed with ortho-cyclohexylphenol, by treating the mixture with an alkaline solution containing less than one mole equivalent of base per mole of ortho-phenylphenol in said mixture; the alkaline solution is extracted and ortho-phenylphenol is recovered from the aqueous phase by acificiation and extraction with subsequent isolation of the ortho-phenylphenol, which contains less than 5% (by weight) ortho-cyclohexylphenol.