Koichi Narasaka
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Explore the profile of Koichi Narasaka including associated specialties, affiliations and a list of published articles.
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6
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58
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Recent Articles
1.
Wang Y, Toh K, Chiba S, Narasaka K
Org Lett
. 2008 Oct;
10(21):5019-22.
PMID: 18842053
Polysubstituted N-H pyrroles with a wide variety of substituents were prepared from vinyl azides and 1,3-dicarbonyl compounds by using Mn(III) complexes as catalysts.
2.
Chiba S, Wang Y, Lapointe G, Narasaka K
Org Lett
. 2007 Dec;
10(2):313-6.
PMID: 18154344
Two synthetic methods for tetra- and trisubstituted N-H pyrroles are presented: (i) the thermal pyrrole formation by the reaction of vinyl azides with 1,3-dicarbonyl compounds via the 1,2-addition of 1,3-dicarbonyl...
3.
Chiba S, Kitamura M, Narasaka K
J Am Chem Soc
. 2006 May;
128(21):6931-7.
PMID: 16719473
The first total synthesis of (-)-sordarin (1) was accomplished exploiting the following key reactions: (i) Ag(I)-catalyzed oxidative radical cyclization of a cyclopropanol derivative leading to a bicyclo[5.3.0]decan-3-one skeleton; (ii) Pd(0)-catalyzed...
4.
Kitamura M, Suga T, Chiba S, Narasaka K
Org Lett
. 2004 Nov;
6(24):4619-21.
PMID: 15548090
Primary amines are prepared by the electrophilic amination of Grignard reagents with 4,4,5,5-tetramethyl-1,3-dioxolan-2-one O-phenylsulfonyloxime and the acidic hydrolysis of the resulting imines. [reaction: see text]
5.
Ando K, Kitamura M, Miura K, Narasaka K
Org Lett
. 2004 Jul;
6(14):2461-3.
PMID: 15228304
[reaction: see text] The intramolecular in-plane S(N)2 type reaction of haloalkene E-8a was predicted to be a facile process for the first time by DFT calculations (B3LYP/6-31+G(d),SCRF(dipole, solvent = DMF))...
6.
Kitamura M, Narasaka K
Chem Rec
. 2002 Aug;
2(4):268-77.
PMID: 12203909
Oxidative addition of oximes to palladium(0) complexes generates alkylideneaminopalladium(II) species, which are utilized as key intermediates for carbon-nitrogen bond formation. Various aza-heterocycles, such as pyrrole, pyridine, isoquinoline, spiroimine, and azaazulene,...