To provide a chiral reagent or a salt thereof.
The chiral reagent has following chemical formula (I). In the formula (I), G1 and G2 are independently a hydrogen atom, a nitro group (—NO2), a halogen atom, a cyano group (—CN), a group of formula (II) or (III), or both G1 and G2 taken together to form a group of formula (IV).
提供一种手性试剂或其盐。
手性试剂具有如下
化学式(I)。在式 (I) 中,G1 和 G2 独立地为氢原子、硝基 (-
NO2)、卤素原子、
氰基 (-CN)、式 (II) 或 (III) 基团,或 G1 和 G2 共同形成式 (IV) 基团。