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N-Benzylhydroxylamine addition to beta-aryl enoates. Enantioselective synthesis of beta-aryl-beta-amino acid precursors.

Organic letters

Sibi MP, Liu M.
PMID: 11029219
Org Lett. 2000 Oct 19;2(21):3393-6. doi: 10.1021/ol006500e.

Chiral Lewis acid catalyzed N-benzylhydroxylamine addition to pyrrolidinone-derived enoates afforded beta-aryl-beta-amino acid derivatives in high enantiomeric purity with moderate to very good chemical efficiency.


Current opinion in neurobiology

Lumsden A, Chapman S, Schubert F, Toole L, Mayford M, Hamann S, Reber PJ, Häusser M, Murthy VN, Wood JN, Liman ER, Filbin MT, Qiu J, Ashe J, Chafee M, Goodwin S, Kyriacou B, Kempermann G, Winkler J.
PMID: 11179863
Curr Opin Neurobiol. 2001 Feb;11(1):1-9. doi: 10.1016/s0959-4388(00)00185-9.

No abstract available.

Enantioselective conjugate addition of hydroxylamines to pyrazolidinone acrylamides.

Organic letters

Sibi MP, Liu M.
PMID: 11784172
Org Lett. 2001 Dec 27;3(26):4181-4. doi: 10.1021/ol016807t.

Chiral relay templates provide amplification of selectivity in conjugate addition reactions. Reversal of stereochemistry of the product isoxazolidinones has also been demonstrated by a simple change of the Lewis acid. [reaction: see text]

Forming supramolecular networks from nanoscale rods in binary, phase-separating mixtures.

Science (New York, N.Y.)

Peng G, Qiu F, Ginzburg VV, Jasnow D, Balazs AC.
PMID: 10846157
Science. 2000 Jun 09;288(5472):1802-4. doi: 10.1126/science.288.5472.1802.

Simulations show that when low-volume fractions of nanoscale rods are immersed in a binary, phase-separating blend, the rods self-assemble into needle-like, percolating networks. The interconnected network arises through the dynamic interplay of phase-separation between the fluids, through preferential adsorption...

Localization of keratin mRNA and collagen I mRNA in gastric cancer by in situ hybridization and hybridization electron microscopy.

World journal of gastroenterology

Su CQ, Qiu H, Zhang Y.
PMID: 11819505
World J Gastroenterol. 1999 Dec;5(6):527-530. doi: 10.3748/wjg.v5.i6.527.

No abstract available.

Preparations of Trisubstituted Hydrazines and Pyrazolidines from N-(1-Benzotriazolylalkyl)hydrazines.

The Journal of organic chemistry

Katritzky AR, Qiu G, Yang B.
PMID: 11671935
J Org Chem. 1997 Nov 14;62(23):8210-8214. doi: 10.1021/jo9709110.

Reactions of N,N'-disubstituted hydrazines with benzotriazole and aldehydes give N-(alpha-benzotriazoylalkyl)-N,N'-disubstituted hydrazines which on treatment with organometallic reagents form N-alkyl-N,N'-disubstituted hydrazines in good yields. N-(Benzotriazolylalkyl)-N,N'-disubstituted hydrazines and electron-rich olefins, in the presence of zinc bromide catalyst, generate N,N'-disubstituted pyrazolidines in...

Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by a Titanate Complex with a Chiral Tetradentate Ligand.

The Journal of organic chemistry

Qiu J, Guo C, Zhang X.
PMID: 11671619
J Org Chem. 1997 Apr 18;62(8):2665-2668. doi: 10.1021/jo970055s.

No abstract available.

In vivo donor adenoviral-mediated transtracheal transfection of human IL-10 (HIL-10) gene ameliorates ischemia-reperfusion (IR) injury and enhances transplanted lung function.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation

Fischer S, Liu M, Maclean AA, De Perrot M, Bai X, Cardella J, Imai Y, Keshavjee S.
PMID: 11250215
J Heart Lung Transplant. 2001 Feb;20(2):152-153. doi: 10.1016/s1053-2498(00)00263-1.

No abstract available.

Laser activation voltammetry: selective removal of reduced forms of methyl viologen deposited on glassy carbon and boron-doped diamond electrodes.

Analytical chemistry

Qiu F, Compton RG, Marken F, Wilkins SJ, Goeting CH, Foord JS.
PMID: 10857606
Anal Chem. 2000 Jun 01;72(11):2362-70. doi: 10.1021/ac991392z.

The effect of high-intensity laser pulses on the reduction of methyl viologen at glassy carbon electrodes in aqueous solution is investigated using laser activation voltammetry (LAV) under both channel flow and no-flow conditions and compared with the effect of...

A Note on the Torsional Assignment of the a-Dipole Rotational Spectra for Excited States of CH(2)DSH and CHD(2)SH.

Journal of molecular spectroscopy

Su CF, Liu M, Quade CR.
PMID: 11336531
J Mol Spectrosc. 2001 May;207(1):121-122. doi: 10.1006/jmsp.2001.8316.

No abstract available.

[Cytogenetic analysis on patients with a history of spontaneous abortion].

Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences

Yu MY, Chen YL, Qiu J.
PMID: 12601891
Zhejiang Da Xue Xue Bao Yi Xue Ban. 2002 Aug;31(5):375-378. doi: 10.3785/j.issn.1008-9292.2002.05.017.

OBJECTIVE: To investigate the incidence and identify the type of chromosome abnormalities in couples with spontaneous abortion. Also to observe the effect of balanced translocation on pregnancy outcome. METHODS: A total of 9258 cases of spontaneous abortion were studied....

Confined supramolecular nanostructures of mesogen-bearing amphiphiles.

Chemical communications (Cambridge, England)

Zou B, Wang M, Qiu D, Zhang X, Chi L, Fuchs H.
PMID: 12123047
Chem Commun (Camb). 2002 May 07;(9):1008-9. doi: 10.1039/b201444k.

Stable surface nanostructures with different morphology have been successfully constructed by modifying the chemical structure of synthetic amphiphiles; by introducing mesogenic groups into bolaform amphiphiles, stable spaghetti-like or stripe-like nanostructures can be obtained; it is believed that such a...

Showing 1 to 12 of 17221 entries