手性銥-胺膦體系催化芳香酮不對(duì)稱氫轉(zhuǎn)移氫化的研究.pdf

1、廈門大學(xué)碩士學(xué)位論文手性銥胺膦體系催化芳香酮不對(duì)稱氫轉(zhuǎn)移氫化的研究姓名：唐純良申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：物理化學(xué)指導(dǎo)教師：高景星許翩翩2000.7.1竺壘!墜笙!—一ABSTRACTInt11istIlesisseveralchiralPNNPligandsweresynthesizedandcharacterizedChiralIr(I)systemsweregeneratedinsitufromthesechiralligandsan

2、d[Ir(COO)C1]2or[(PPh3)2Ir(CO)C】／，andusedintheasymmetrichydrogentransferhydrogenationofaromaticketonesThereactionmechanismofhydrogentransferhydrogenationwasalsodisscussedThechiraldiiminodiphosphineligands(R)一or(S)N，N’一bis

3、[o’(diphenylphosphino)benzyldene]propane一1，2diamine【似)or(JS)_CH3P2N2]and僻R)or@S)N，Nbis[o一(diphenylphosphono)benzyldene】cyclohexane—l，2一diamine[假R)一or@S)C6PzN2]werepreparedbythecondensationofD一(diphenylphosphino)benzaldeh

4、ydeand僻)一or($。propane一1，2diamineand(R尺)一or@固一cyclohexane1，2一diamine，respectivlyThediiminodiphosphineligandswerereducedwithexcessNaBH4toaffordthecorrespondingdiaminodiphosphineligands[俾)or(S)一CH3P2(NH)2】and【僻R)一or(SD—C6P2

5、(N】固2】，respectivelyThesePNNPligandscontaintwo“soft’phosphorusatomsandtwo‘hard”nitrogenatoms，Theycallprovidebettercontrolofthecoordinationnumberandsereochemistryoftheresultingcomplexes，alsomaydisplaysomeinterestingstructu