摘要:
An optically active 2,3-bis(dialkylphosphino)pyrazine derivative represented by formula (1) is disclosed. The pyrazine derivative is preferably a quinoxaline derivative represented by formula (2). In formula (1) and (2), R1 is preferably a t-butyl or adamantyl group, and R2 is preferably a methyl group. wherein R1 is a substitutable straight chain or branched alkyl group having 2 to 10 carbon atoms; R2 is a substitutable straight chain or branched alkyl group having fewer carbon atoms than R1; and R3 and R4, which may be the same or different, are each a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, or R3 and R4 are taken together to form a saturated or unsaturated ring. wherein R1 and R2 are as defined above; and R5 is a monovalent substituent.
摘要:
An optically active 2,3-bis(dialkylphosphino)pyrazine derivative represented by formula (1) is disclosed. The pyrazine derivative is preferably a quinoxaline derivative represented by formula (2). In formula (1) and (2), R1 is preferably a t-butyl or adamantyl group, and R2 is preferably a methyl group. wherein R1 is a substituted or unsubstituted, straight chain or branched alkyl group having 2 to 10 carbon atoms; R2 is a substituted or unsubstituted, straight chain or branched alkyl group having fewer carbon atoms than R1; and R3 and R4, which may be the same or different, are each a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, or R3 and R4 are taken together to form a saturated or unsaturated ring. wherein R1 and R2 are as defined above; and R5 is a monovalent substituent.
摘要翻译:公开了由式(1)表示的光学活性2,3-双(二烷基膦基)吡嗪衍生物。 吡嗪衍生物优选为式(2)表示的喹喔啉衍生物。 式(1)和(2)中,R 1优选为叔丁基或金刚烷基,R 2优选为甲基。 其中R 1是具有2至10个碳原子的取代或未取代的直链或支链烷基; R 2是具有比R 1更少的碳原子的取代或未取代的直链或支链烷基; R 3和R 4可以相同或不同,分别为氢原子或具有1-6个碳原子的烷基,或R“ 3和R 4一起形成饱和或不饱和的环。 其中R 1和R 2如上定义; R 5是一价取代基。