[EN] PROCESS FOR THE PRODUCTION OF 1,3,3-TRIMETHYL-2-(3-METHYLPENT-2-EN-4-YNYL)CYCLOHEX-1-ENE<br/>[FR] PROCÉDÉ DE PRODUCTION DE 1,3,3-TRIMÉTHYL-2-(3-MÉTHYLPENT-2-ÉN-4-YNYL)- CYCLOHEX-1-ÈNE
申请人:DSM IP ASSETS BV
公开号:WO2012175396A1
公开(公告)日:2012-12-27
The present invention relates to an improved process for the production of 1,3,3-trimethyl-2-(3-methylpent-2-en-4-ynyl)cyclohex-1-ene, highly enriched in the Z-isomer, and the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) the synthesis of vitamin A or β-carotene or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin.
NEW INTERMEDIATES FOR THE VITAMIN A AND beta-CAROTENE SYNTHESIS
申请人:Bonrath Werner
公开号:US20150112091A1
公开(公告)日:2015-04-23
The present invention relates to compounds of formula (I) wherein R
1
signifies a C
1
-C
15
alkyl moiety or a C
2
to C
18
alkenyl moiety, to their process of production as well as to their use in organic synthesis, especially as intermediates (building blocks) in the synthesis of vitamin A or β-carotene or derivatives thereof, or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin, preferably vitamin A.
The present invention relates to new organic compounds, to their synthesis as well as to their use in organic synthesis, especially in processes forming intermediates (building blocks) for the synthesis of vitamin A or β-carotene or other carotenoids.
Intermediates for the vitamin A and β-carotene synthesis
申请人:Bonrath Werner
公开号:US09309194B2
公开(公告)日:2016-04-12
The present invention relates to compounds of formula (I) wherein R1 signifies a C1-C15 alkyl moiety or a C2 to C18 alkenyl moiety, to their process of production as well as to their use in organic synthesis, especially as intermediates (building blocks) in the synthesis of vitamin A or β-carotene or derivatives thereof, or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin, preferably vitamin A.
The present invention relates to new organic compounds, to their synthesis as well as to their use in organic synthesis, especially in processes forming intermediates (building blocks) for the synthesis of vitamin A or β-carotene or other carotenoids.