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Synthesis of novel chiral dipyridylp...

Wu, Jing.

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Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions./
作者:	Wu, Jing.
面頁冊數:	354 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0723.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3082856

Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions.
Wu, Jing.

Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions. - 354 p.

Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0723.

Thesis (Ph.D.)--Hong Kong Polytechnic (People's Republic of China), 2003.

We have recently developed a chiral dipyridylphosphine ligand 2,2<super> ′</super>,6,6<super>′</super>-tetramethoxy-4,4<super>′</super>-bis(diphenylphosphino)-3,3<super> ′</super>-bipyridine (P-Phos), which was found to be very effective in the Ru-catalyzed asymmetric hydrogenation of 2-(6<super>′</super>-methoxy-2<super> ′</super>-naphthyl)propenoic acid to give the nonsteroidal anti-inflammatory drug naproxen.

Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions.
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100 1 $a Wu, Jing. $3 1001228
245 1 0 $a Synthesis of novel chiral dipyridylphosphine ligands and their application in catalytic asymmetric hydrogenation reactions.
300 $a 354 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0723.
500 $a Supervisors: C.-H. Yeung; Albert S. C. Chan.
502 $a Thesis (Ph.D.)--Hong Kong Polytechnic (People's Republic of China), 2003.
520 $a We have recently developed a chiral dipyridylphosphine ligand 2,2<super> ′</super>,6,6<super>′</super>-tetramethoxy-4,4<super>′</super>-bis(diphenylphosphino)-3,3<super> ′</super>-bipyridine (P-Phos), which was found to be very effective in the Ru-catalyzed asymmetric hydrogenation of 2-(6<super>′</super>-methoxy-2<super> ′</super>-naphthyl)propenoic acid to give the nonsteroidal anti-inflammatory drug naproxen.
520 $a In this study, we have designed and prepared two analogs of P-Phos, 2,2<super> ′</super>,6,6<super>′</super>-tetramethoxy-4,4<super>′</super>-bis[di(<italic> p</italic>-methyl-phenyl)phosphino]-3,3<super>′</super>-bipyridine (Tol-P-Phos) 2,2<super>′</super>,6,6<super>′</super>-tetramethoxy-4,4<super> ′</super>-bis[di-(3,5-dimethylphenyl)phosphino]-3,3<super>′</super>-bipyridine (Xyl-P-Phos) by introducing various substituents onto the four phenyl rings in P-Phos to tune its electronic and steric properties. In addition, we also designed type of P-Phos variant, 2,2<super>′</super>,6,6<super>′ </super>-tetramethoxy-4,4<super>′</super>-bis(dicyclohexylphosphino)-3,3<super> ′</super>-bipyridine (Cy-P-Phos), which bears four bulky, electron-donating cyclohexyl groups in the two phosphorus atoms, instead of the four arene groups of conventional P-Phos ligands
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3082856