CATALYTIC SYNTHESIS OF ANTI-UV AND ANTIOXIDANT CONJUGATED 8-8 DIMERS IN A GREEN SOLVENT
申请人:INSTITUT DES SCIENCES ET INDUSTRIES DU VIVANT ET DE L'ENVIRONNEMENT - AGROPARIS TECH
公开号:US20220009874A1
公开(公告)日:2022-01-13
A process for preparing b-b dimers having anti-UV and antioxidant properties, from p-hydroxycinnamic esters and amides disubstituted in the ortho position with respect to the phenol function and from ketones disubstituted in the ortho position with respect to the phenol, in particular, from sinapic acid esters and amides and ketone analogs. The dimers of formulae (I), (II), (III) and (IV) as obtained by means of the process according to the present disclosure can be used for the production of polymers/plastics (in plastics technology), or for the protection of plants against the cold and as cosmetic or food-processing ingredients, for example. The process may be used to form biobased anti-UV molecules.
Biomimetic regioselective and high-yielding Cu(<scp>i</scp>)-catalyzed dimerization of sinapate esters in green solvent Cyrene™: towards sustainable antioxidant and anti-UV ingredients
作者:Matthieu M. Mention、Amandine L. Flourat、Cédric Peyrot、Florent Allais
DOI:10.1039/d0gc00122h
日期:——
work aimed at designing an industrially relevant sustainable synthetic pathway allowing their selective β–β′ dimerization to enhance their properties with a view to use them in commercial applications such as functional additives for cosmetics, plastics and food/feed. A copper(I)-catalyzed procedure involving pyridine and O2 from air was developed and greened up using the REACH-compliant bio-based