There are provided a compound capable of being a novel ligand allowing regioselective borylation to be performed in the aromatic borylation reaction, and a catalyst using the same compound. There is provided a bipyridyl compound represented by a general formula (1): (wherein A represents a single bond, a vinylene group or an ethynylene group;
X represents an oxygen atom or a sulfur atom;
n pieces of R1 may be the same or different, and R1 represents a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted aryloxy group, an optionally substituted amino group, a cyano group, a nitro group, or an alkoxycarbonyl group, or two adjacent R1 may form a saturated or unsaturated ring structure optionally containing a hetero atom together with the carbon atoms bonded to the two R1;
R2 represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, or an optionally substituted aryloxy group; and
n represents a number of 1 to 4).
本发明提供了一种可作为新型
配体的化合物,允许在芳香
硼酸化反应中进行区域选择性
硼酸化反应,并提供了一种使用该化合物的
催化剂。提供了一种由通式(1)表示的双
吡啶化合物:(其中 A 代表单键、
乙烯基或
乙炔基;
X 代表
氧原子或
硫原子;
n 个 R1 可以相同或不同,且 R1 代表
氢原子、卤素原子、任选取代的烃基、任选取代的烷
氧基、任选取代的芳
氧基、任选取代的
氨基、
氰基、硝基或烷
氧基羰基,或两个相邻的 R1 可以形成一个饱和或不饱和环结构,其中任选含有一个杂原子以及与两个 R1 键合的
碳原子;
R2 代表
氢原子、任选取代的烃基、任选取代的烷
氧基或任选取代的芳
氧基;以及
n 代表 1 至 4 的数字)。