Um IH - Search Results

1

Arsenic(III) oxidation by iron(VI) (ferrate) and subsequent removal of arsenic(V) by iron(III) coagulation.

Lee Y, Um IH, Yoon J. Lee Y, et al. Among authors: um ih. Environ Sci Technol. 2003 Dec 15;37(24):5750-6. doi: 10.1021/es034203+. Environ Sci Technol. 2003. PMID: 14717190

2

Choice of solvent (MeCN vs H(2)O) decides rate-limiting step in S(N)Ar aminolysis of 1-fluoro-2,4-dinitrobenzene with secondary amines: importance of Brønsted-type analysis in acetonitrile.

Um IH, Min SW, Dust JM. Um IH, et al. J Org Chem. 2007 Nov 9;72(23):8797-803. doi: 10.1021/jo701549h. Epub 2007 Oct 20. J Org Chem. 2007. PMID: 17949108

3

Effect of amine nature on reaction mechanism: aminolyses of o-4-nitrophenyl thionobenzoate with primary and secondary amines.

Um IH, Lee SE, Kwon HJ. Um IH, et al. J Org Chem. 2002 Dec 13;67(25):8999-9005. doi: 10.1021/jo0259360. J Org Chem. 2002. PMID: 12467421

4

The effect of medium on rate and mechanism: aminolysis of O-4-nitrophenyl thionobenzoate in MeCN and H2O.

Um IH, Seok JA, Kim HT, Bae SK. Um IH, et al. J Org Chem. 2003 Oct 3;68(20):7742-6. doi: 10.1021/jo034637n. J Org Chem. 2003. PMID: 14510550

5

Effect of substituent on regioselectivity and reaction mechanism in aminolysis of 2,4-dinitrophenyl X-substituted benzenesulfonates.

Um IH, Hong JY, Seok JA. Um IH, et al. J Org Chem. 2005 Feb 18;70(4):1438-44. doi: 10.1021/jo048227q. J Org Chem. 2005. PMID: 15704981

6

The alpha-effect in reactions of sp-hybridized carbon atom: Michael-type reactions of 1-aryl-2-propyn-1-ones with primary amines.

Um IH, Lee EJ, Seok JA, Kim KH. Um IH, et al. J Org Chem. 2005 Sep 16;70(19):7530-6. doi: 10.1021/jo050624t. J Org Chem. 2005. PMID: 16149780

7

Kinetic study on SNAr reaction of 1-(y-substituted-phenoxy)-2,4-dinitrobenzenes with cyclic secondary amines in acetonitrile: evidence for cyclic transition-state structure.

Um IH, Kim MY, Kang TA, Dust JM. Um IH, et al. J Org Chem. 2014 Aug 1;79(15):7025-31. doi: 10.1021/jo5011872. Epub 2014 Jul 15. J Org Chem. 2014. PMID: 25004104

8

Alkali metal ion catalysis and inhibition in nucleophilic displacement reactions at phosphorus centers: ethyl and methyl paraoxon and ethyl and methyl parathion.

Um IH, Shin YH, Lee SE, Yang K, Buncel E. Um IH, et al. J Org Chem. 2008 Feb 1;73(3):923-30. doi: 10.1021/jo702138h. Epub 2008 Jan 3. J Org Chem. 2008. PMID: 18171080

9

Regioselectivity and the nature of the reaction mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with primary amines.

Um IH, Hong JY, Kim JJ, Chae OM, Bae SK. Um IH, et al. J Org Chem. 2003 Jun 27;68(13):5180-5. doi: 10.1021/jo034190i. J Org Chem. 2003. PMID: 12816474

10

Effect of amine nature on reaction rate and mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with alicyclic secondary amines.

Um IH, Chun SM, Chae OM, Fujio M, Tsuno Y. Um IH, et al. J Org Chem. 2004 Apr 30;69(9):3166-72. doi: 10.1021/jo049812u. J Org Chem. 2004. PMID: 15104458

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