Bycyclic tetrahydrofuran derivatives and process for the preparation thereof
申请人:Cho Seo Yong
公开号:US20070010576A1
公开(公告)日:2007-01-11
The present invention relates to bicyclic tetrahydrofuran derivatives of Formula (1) and a preparation method thereof, and particularly it relates to a process of preparing compounds of Formula (1) by performing an intramolecular cyclization of tetrahydrofuran-allenol derivatives in the presence of alcohol compound, transitional metal catalyst and carbon monoxide:
wherein n is 1 or 2; R is phenyl optionally substituted with C
1
-C
6
alkyl, C
1
-C
6
alkoxy, hydroxyl or C
1
-C
6
hydroxyalkyl group; and R
1
is C
1
-C
6
alkyl group.
[EN] BICYCLIC TETRAHYDROFURAN DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF<br/>[FR] DÉRIVÉS BICYCLIQUES DU TÉTRAHYDROFURANE ET PROCÉDÉ POUR LA PRÉPARATION DE CEUX-CI
申请人:KOREA INST SCI & TECH
公开号:WO2007007939A1
公开(公告)日:2007-01-18
[EN] The present invention relates to bicyclic tetrahydrofuran derivatives and a preparation method thereof. Particularly the present invention relates to a process of preparing the above compounds by performing an intramolecular cyclization of tetrahydrofuran-allenol derivatives in the presence of alcohol compound, transitional metal catalyst and carbon monoxide. [FR] La présente invention concerne des dérivés bicycliques du tétrahydrofurane et un procédé de préparation de ceux-ci. En particulier la présente invention concerne un procédé de préparation des composés ci-dessus en effectuant une cyclisation intramoléculaire de dérivés de tétrahydrofuran-allénol en présence d'un composé alcool, d'un catalyseur à base d'un métal de transition et de monoxyde de carbone.