Neumann R - Search Results

1

A highly chemoselective, diastereoselective, and regioselective epoxidation of chiral allylic alcohols with hydrogen peroxide, catalyzed by sandwich-type polyoxometalates: enhancement of reactivity and control of selectivity by the hydroxy group through metal-alcoholate bonding.

Adam W, Alsters PL, Neumann R, Saha-Möller CR, Sloboda-Rozner D, Zhang R. Adam W, et al. Among authors: neumann r. J Org Chem. 2003 Mar 7;68(5):1721-8. doi: 10.1021/jo0266386. J Org Chem. 2003. PMID: 12608784

2

Chiral hydroperoxides as oxygen source in the catalytic stereoselective epoxidation of allylic alcohols by sandwich-type polyoxometalates: control of enantioselectivity through a metal-coordinated template.

Adam W, Alsters PL, Neumann R, Saha-Möller CR, Seebach D, Beck AK, Zhang R. Adam W, et al. Among authors: neumann r. J Org Chem. 2003 Oct 17;68(21):8222-31. doi: 10.1021/jo034923z. J Org Chem. 2003. PMID: 14535806

3

Highly efficient catalytic asymmetric epoxidation of allylic alcohols by an oxovanadium-substituted polyoxometalate with a regenerative TADDOL-derived hydroperoxide.

Adam W, Alsters PL, Neumann R, Saha-Möller CR, Seebach D, Zhang R. Adam W, et al. Among authors: neumann r. Org Lett. 2003 Mar 6;5(5):725-8. doi: 10.1021/ol027498p. Org Lett. 2003. PMID: 12605500

4

A water-soluble and "self-assembled" polyoxometalate as a recyclable catalyst for oxidation of alcohols in water with hydrogen peroxide.

Sloboda-Rozner D, Alsters PL, Neumann R. Sloboda-Rozner D, et al. Among authors: neumann r. J Am Chem Soc. 2003 May 7;125(18):5280-1. doi: 10.1021/ja0344821. J Am Chem Soc. 2003. PMID: 12720432

5

Selective aerobic oxidation of alcohols with a combination of a polyoxometalate and nitroxyl radical as catalysts.

Ben-Daniel R, Alsters P, Neumann R. Ben-Daniel R, et al. Among authors: neumann r. J Org Chem. 2001 Dec 14;66(25):8650-3. doi: 10.1021/jo0105843. J Org Chem. 2001. PMID: 11735552 No abstract available.

6

Highly efficient recycling of a "sandwich" type polyoxometalate oxidation catalyst using solvent resistant nanofiltration.

Witte PT, Chowdhury SR, ten Elshof JE, Sloboda-Rozner D, Neumann R, Alsters PL. Witte PT, et al. Among authors: neumann r. Chem Commun (Camb). 2005 Mar 7;(9):1206-8. doi: 10.1039/b416096g. Epub 2005 Jan 18. Chem Commun (Camb). 2005. PMID: 15726193

7

Oxygen transfer from sulfoxides: selective oxidation of alcohols catalyzed by polyoxomolybdates.

Khenkin AM, Neumann R. Khenkin AM, et al. Among authors: neumann r. J Org Chem. 2002 Oct 4;67(20):7075-9. doi: 10.1021/jo0255577. J Org Chem. 2002. PMID: 12354002

8

Regioselective alkene carbon-carbon bond cleavage to aldehydes and chemoselective alcohol oxidation of allylic alcohols with hydrogen peroxide catalyzed by [cis-Ru(II)(dmp)2(H2O)2]2+ (dmp = 2,9-dimethylphenanthroline).

Kogan V, Quintal MM, Neumann R. Kogan V, et al. Among authors: neumann r. Org Lett. 2005 Oct 27;7(22):5039-42. doi: 10.1021/ol052025e. Org Lett. 2005. PMID: 16235952

9

Fluorinated alcohols enable olefin epoxidation by H2O2: template catalysis.

de Visser SP, Kaneti J, Neumann R, Shaik S. de Visser SP, et al. Among authors: neumann r. J Org Chem. 2003 Apr 4;68(7):2903-12. doi: 10.1021/jo034087t. J Org Chem. 2003. PMID: 12662068

10

Electrophilic activation of hydrogen peroxide: selective oxidation reactions in perfluorinated alcohol solvents.

Neimann K, Neumann R. Neimann K, et al. Among authors: neumann r. Org Lett. 2000 Sep 7;2(18):2861-3. doi: 10.1021/ol006287m. Org Lett. 2000. PMID: 10964384

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