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.
一种制备具有抗紫外线和抗氧化性能的b-b二聚体的方法,该方法使用
对酚功能与p-
羟基肉桂酸酯和酰胺二取代物以及酮二取代物在邻位上的材料,特别是从
芥酸酸酯和酰胺以及
酮类类似物中获得。通过本公开的方法获得的式(I)、(II)、(III)和(IV)的二聚体可以用于生产聚合物/塑料(在塑料技术中),或用于保护植物免受寒冷的侵害,并作为化妆品或食品加工成分等。该方法可用于形成
生物基抗紫外线分子。