Method for the metal-free preparation of a biaryl by a photosplicing reaction and their uses
申请人:Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie E. V. Hans-Knöll-Institut (HKI)
公开号:US11485721B2
公开(公告)日:2022-11-01
The present invention relates to a method for the metal-free preparation of a biaryl compound by a photosplicing reaction and its use in the preparation of chemical compounds, preferably of active ingredients e.g. in the fields of pharmaceuticals and agrochemicals. In particular, it refers to a method for the regiocontrolled preparation of a biaryl compound of formula (I): Ar—Ar′ by photochemically reacting a precursor compound of formula (II): Ar—L—Ar′ to form a biaryl compound of general formula: Ar—L—Ar′(II)→Ar—Ar′ (I) wherein Ar and Ar′, independently of each other, represent an unsubstituted or substituted C6-C20 aryl group or a heteroaryl group with 5-20 ring atoms selected from carbon, nitrogen, oxygen and sulfur, and L represents a group —X—Y—Z— as defined herein. The biaryl compounds are generally suitable as intermediates or key building blocks in a very broad spectrum of organic chemical syntheses and their respective utilities. Their use within the field of synthesis of active ingredients is an aspect of the invention, and their use in the preparation of pharmaceutically active ingredients is particularly preferred.
本发明涉及一种通过光聚合反应无金属制备双芳基化合物的方法,以及该方法在制备化 学化合物,尤其是在医药和农用化学品领域制备活性成分中的应用。具体而言,本发明涉及一种式(I)双芳基化合物的受控制备方法:Ar-Ar′,使式(II)的前体化合物发生光化学反应:Ar-L-Ar′ 光化学反应生成通式为:Ar-L-Ar′(Ⅱ)→Ar-Ar′(Ⅰ) 其中 Ar 和 Ar′彼此独立地代表未取代或取代的 C6-C20 芳基或具有 5-20 个选自碳、氮、氧和硫的环原子的杂芳基,L 代表本文定义的基团-X-Y-Z-。双芳基化合物通常可作为非常广泛的有机化学合成及其各自用途的中间体或关键构件。它们在活性成分合成领域中的应用是本发明的一个方面,特别优选它们在制备药物活性成分中的应用。