Title:
ビタミンＡの合成方法
Document Type and Number:
Japanese Patent JP7077475
Kind Code:
B2
Abstract:
A method for preparing dehydro-cyclofarnesal from dehydro-farnesal by cyclization in the presence of an acid may include the dehydro-farnesal being obtained from the farnesal by dehydrogenation and may further includes the cyclization being carried out in the presence of an acid selected from Lewis acids, Bronstedt acids, and zeolites. The synthesis of vitamin A using this method further includes the conversion of dehydro-cyclofarnesal into vitamin A.
Inventors:
Ray Patrick
Yue Robert
Obli Sylvain
Henlion Vivian
Yue Robert
Obli Sylvain
Henlion Vivian
Application Number:
JP2021507888A
Publication Date:
May 30, 2022
Filing Date:
August 19, 2019
Export Citation:
Assignee:
ADISSEO FRANCE S.A.S.
International Classes:
C07C403/14; B01J27/10; B01J27/135; B01J31/22; C07C45/34; C07C45/65; C07C47/21
Domestic Patent References:
| JP2002520312A |
Foreign References:
| US20050027143 |
Other References:
VALLA, A. et al,New Syntheses of Retinal and Its Acyclic Analog γ-Retinal by an Extended Aldol Reaction with a C6 Building Block That Incorporates a C5 Unit after Decarboxylation. A Formal Route to Lycopene and β-Carotene,Helvetica Chimica Acta,スイス,スイス化学協会,2007年,90, 3,p.512-520
Attorney, Agent or Firm:
Maeda patent office
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