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Asymmetric synthesis by chiral poiso...

Liu, Xiang.

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Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids./
Author:	Liu, Xiang.
Description:	259 p.
Notes:	Director: Jack W. Faller.
Contained By:	Dissertation Abstracts International59-05B.
Subject:	Chemistry, Inorganic. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9835272
ISBN:	9780591887280

Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids.
Liu, Xiang.

Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids. - 259 p.

Director: Jack W. Faller.

Thesis (Ph.D.)--Yale University, 1998.

Allylation of aldehydes gave chiral homoallylic alcohols in high optical purity with a titanium catalyst, prepared by chiral poisoning Ti(O-i-Pr)$\sb4$/rac-BINOL with catalytically inactive Ti(O-i-Pr)$\sb4$/D-DIPT.

ISBN: 9780591887280Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids.
LDR:02049nam 2200313 a 45 001 973846
005 20110928
008 110928s1998 eng d
020 $a 9780591887280
035 $a (UnM)AAI9835272
035 $a AAI9835272
040 $a UnM $c UnM
100 1 $a Liu, Xiang. $3 1275849
245 1 0 $a Asymmetric synthesis by chiral poisoning and chiral ruthenium Lewis acids.
300 $a 259 p.
500 $a Director: Jack W. Faller.
500 $a Source: Dissertation Abstracts International, Volume: 59-05, Section: B, page: 2194.
502 $a Thesis (Ph.D.)--Yale University, 1998.
520 $a Allylation of aldehydes gave chiral homoallylic alcohols in high optical purity with a titanium catalyst, prepared by chiral poisoning Ti(O-i-Pr)$\sb4$/rac-BINOL with catalytically inactive Ti(O-i-Pr)$\sb4$/D-DIPT.
520 $a Chiral ruthenium complexes with hemilabile bisphosphine monoxide ligands were synthesized. The structures, kinetic behavior, optical property and diastereoselectivity of these complexes were studied.
520 $a Using chiral poisoning of racemic titanium BINOL complexes, comparable or enhanced enantioselectivity can be achieved relative to catalysts from enantiopure titanium (S)-BINOL complexes in the catalyzed reaction between chloral and olefins.
520 $a A doubly charged chiral nonracemic ruthenium Lewis acid, $\lbrack(\eta\sp6$-Cy)Ru($\eta\sp2$-(R, R.)-chiraphos monoxide-P,O)()) (SbF$\sb6\rbrack\sb2,$ was conveniently generated by treating $\lbrack\eta\sp6$-Cy)Ru($\eta\sp1$-(R, R.)-chiraphos monoxide-P)Cl$\sb2\rbrack$ with 2 equivalents of Ag$\sp+$ ion. In the presence of the acid at a loading of 10 mol%, the Diels-Alder reaction of methacrolein with cyclopentadiene yielded the product in 30% ee (R) at ${-}25\sp\circ $c .
590 $a School code: 0265.
650 4 $a Chemistry, Inorganic. $3 517253
650 4 $a Chemistry, Organic. $3 516206
690 $a 0488
690 $a 0490
710 2 0 $a Yale University. $3 515640
773 0 $t Dissertation Abstracts International $g 59-05B.
790 $a 0265
790 1 0 $a Faller, Jack W., $e advisor
791 $a Ph.D.
792 $a 1998
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9835272