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1. (WO1998051680) PROCESS FOR PRODUCING 1,4-BENZODIOXANE DERIVATIVES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051680 International Application No.: PCT/JP1998/002081
Publication Date: 19.11.1998 International Filing Date: 12.05.1998
IPC:
C07D 319/20 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
319
Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
10
1,4-Dioxanes; Hydrogenated 1,4-dioxanes
14
condensed with carbocyclic rings or ring systems
16
condensed with one six-membered ring
20
with substituents attached to the hetero ring
Applicants:
DAISO CO., LTD. [JP/JP]; 10-8, Edobori 1-chome Nishi-ku Osaka-shi Osaka 550-0002, JP (AllExceptUS)
FURUKAWA, Yoshiro [JP/JP]; JP (UsOnly)
KITAORI, Kazuhiro [JP/JP]; JP (UsOnly)
MATSUI, Shouhei [JP/JP]; JP (UsOnly)
Inventors:
FURUKAWA, Yoshiro; JP
KITAORI, Kazuhiro; JP
MATSUI, Shouhei; JP
Agent:
AOYAMA, Tamotsu ; Aoyama & Partners IMP Building 3-7, Shiromi 1-chome Chuo-ku, Osaka-shi Osaka 540-0001, JP
Priority Data:
9/12084912.05.1997JP
Title (EN) PROCESS FOR PRODUCING 1,4-BENZODIOXANE DERIVATIVES
(FR) PROCEDE POUR PRODUIRE DES DERIVES DE 1,4-BENZODIOXANE
Abstract:
(EN) An industrial process for producing 1,4-benzodioxane derivatives (1), characterized by converting a diol (2) into a carbonate (3) with a carbonating agent, removing the protecting group, and cyclizing the obtained compound by heating or by treating with a base or fluoride salt.
(FR) Cette invention se rapporte à un procédé industriel servant à produire des dérivés de 1,4-benzodioxane (1), ce procédé consistant à convertir un diol (2) en un carbonate (3) au moyen d'un agent de carbonatation, à éliminer le groupe protecteur, et à cycliser le composé ainsi obtenu en le chauffant ou en le traitant avec une base ou un sel fluorure.
front page image
Designated States: CA, JP, KR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
KR1020000016758EP0928791US6020503JP3581156CA2256681