公开(公告)号：DE60101020T2

公开(公告)日：2004-06-24

申请号：DE60101020

申请日：2001-06-19

Applicant: DAICEL CHEM

Inventor： TANIGAWA HIROTO ,  OKA KENJI

IPC: C07D317/64

Abstract: Heliotropin is oxidized with a percarboxylic acid in the presence of formic acid and an optionally added organic solvent, to thereby produce sesamol at high efficiency while suppressing by-production of heliotropic acid.

公开(公告)号：EP2014634A4

公开(公告)日：2012-10-31

申请号：EP07741402

申请日：2007-04-11

Applicant: DAICEL CHEM

Inventor： TAKAI HIDEYUKI ,  OKA KENJI ,  KITAO KYUHEI

IPC: C07C1/24 ,  C07B61/00 ,  C07C7/04 ,  C07C13/28

CPC classification number: C07C13/28 ,  C07C1/24 ,  C07C2527/03 ,  C07C2527/054 ,  C07C2527/173 ,  C07C2601/16

公开(公告)号：DE60101020D1

公开(公告)日：2003-11-27

申请号：DE60101020

申请日：2001-06-19

Applicant: DAICEL CHEM

Inventor： TANIGAWA HIROTO ,  OKA KENJI

IPC: C07D317/64

Abstract: Heliotropin is oxidized with a percarboxylic acid in the presence of formic acid and an optionally added organic solvent, to thereby produce sesamol at high efficiency while suppressing by-production of heliotropic acid.

公开(公告)号：NO20013046A

公开(公告)日：2001-12-20

申请号：NO20013046

申请日：2001-06-19

Applicant: DAICEL CHEM

Inventor： TANIGAWA HIROTO ,  OKA KENJI

IPC: C07D317/64 ,  C07D317/68 ,  A61K31/36

CPC classification number: C07D317/64

公开(公告)号：NO20013046L

公开(公告)日：2001-12-20

申请号：NO20013046

申请日：2001-06-19

Applicant: DAICEL CHEM

Inventor： TANIGAWA HIROTO ,  OKA KENJI

IPC: C07D317/64 ,  C07D317/68 ,  A61K31/36

Abstract: Heliotropin is oxidized with a percarboxylic acid in the presence of formic acid and an optionally added organic solvent, to thereby produce sesamol at high efficiency while suppressing by-production of heliotropic acid.

公开(公告)号：NO20013046D0

公开(公告)日：2001-06-19

申请号：NO20013046

申请日：2001-06-19

Applicant: DAICEL CHEM

Inventor： TANIGAWA HIROTO ,  OKA KENJI

IPC: C07D317/64 ,  C07D

Abstract: Heliotropin is oxidized with a percarboxylic acid in the presence of formic acid and an optionally added organic solvent, to thereby produce sesamol at high efficiency while suppressing by-production of heliotropic acid.

公开(公告)号：DE3850647D1

公开(公告)日：1994-08-18

申请号：DE3850647

申请日：1988-01-13

Applicant: DAICEL CHEM

Inventor： YAGII TOYOKAZU ,  ITOKAZU TERUO ,  OKA KENJI ,  TANAKA YASUTAKA ,  KOJIMA HIDETAKA

IPC: C07C68/00 ,  C07C263/04 ,  C07C265/04 ,  C07C265/10 ,  C07C265/14 ,  C07C263/00

公开(公告)号：DE3850647T2

公开(公告)日：1994-11-17

申请号：DE3850647

申请日：1988-01-13

Applicant: DAICEL CHEM

Inventor： YAGII TOYOKAZU ,  ITOKAZU TERUO ,  OKA KENJI ,  TANAKA YASUTAKA ,  KOJIMA HIDETAKA

IPC: C07C68/00 ,  C07C263/04 ,  C07C265/04 ,  C07C265/10 ,  C07C265/14 ,  C07C263/00

公开(公告)号：JPH08311058A

公开(公告)日：1996-11-26

申请号：JP13986695

申请日：1995-05-15

Applicant: DAICEL CHEM

Inventor： KAMEI NOBORU ,  OKA KENJI

IPC: C07D313/04 ,  C07B63/00

Abstract: PURPOSE: To provide a method for purifying ε-caprolactone by which a high yield of the ε-caprolactone is obtained from a reactional mixture prepared by oxidizing cyclohexanone by distillation. CONSTITUTION: Low-boiling substances contained in a reactional mixture prepared by oxidizing cyclohexanone are distilled away by the first distillation step and high-boiling fraction impurities are then taken out in a low concentrated state as a bottom product in the second distillation step for distilling away the product ε-caprolactone from the first bottom product and separating the ε-caprolactone from high-boiling substances so as to provide at least >=20wt.% lactone concentration in the second bottom product. The ε- caprolactone contained in the second bottom product is subsequently evaporated with an evaporator and recovered in a method for purifying the ε-caprolactone by distilling the reactional mixture and separating the ε-caprolactone from the impurities.

公开(公告)号：JPH0564620B2

公开(公告)日：1993-09-16

申请号：JP6291385

申请日：1985-03-27

Applicant: DAICEL CHEM

Inventor： HATSUTORI SHINJI ,  OKA KENJI

IPC: C07C45/58 ,  B01J27/00 ,  B01J27/138 ,  C07B61/00 ,  C07C45/00 ,  C07C47/225 ,  C07C67/00