Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Sunita S. Kunte"'
Autor:
Murugesan Sasikumar, Murugan Muthukrishnan, Sunita S. Kunte, Jambu Subramanian, Viswanadh Nalla, Mohammad Mujahid
Publikováno v:
New Journal of Chemistry. 41:824-829
A concise and efficient enantioselective synthesis of both enantiomers of bepridil, a calcium channel blocker, is reported. Jacobsen's hydrolytic kinetic resolution method was utilized to resolve racemic 2-(isobutoxymethyl)oxirane. The incorporation
Publikováno v:
Tetrahedron Letters. 57:861-863
An alternate synthesis of (R)-2-benzylmorpholine 1, an appetite suppressant agent has been accomplished starting from readily available trans-cinnamyl alcohol employing Sharpless asymmetric epoxidation strategy as a key step, with an overall yield of
Publikováno v:
Tetrahedron: Asymmetry. 25:1292-1297
Enantioselective direct aldol reactions were carried out in aqueous media with a new organocatalyst that was derived from 4-hydroxy- l - proline and abietic acid via a simple and convenient synthetic protocol with a high overall yield (75%). The new
Publikováno v:
Tetrahedron Letters. 55:3223-3226
A new enantioselective synthetic route to the title compounds has been developed in a simple and practical way with high enantiopurity using commercially available starting material.
Autor:
Santhivardhana Reddy Yetra, Akkattu T. Biju, Santigopal Mondal, Rajesh G. Gonnade, Sunita S. Kunte, Atanu Patra
Publikováno v:
Chem. Commun.. 50:14539-14542
Highly enantioselective NHC-organocatalyzed synthesis of functionalized cyclopentenes proceeding via α,β-unsaturated acyl azolium intermediates is reported. The organocascade reaction of modified enals with malonic ester derivatives having a γ-ben
Publikováno v:
RSC Adv.. 4:24311-24315
The catalytic efficacy of the smallest organocatalyst, L-proline hydrazide, prepared from a cheaply available natural amino acid, such as L-proline, was studied for the direct asymmetric aldol reaction of various ketones with aromatic aldehydes at ro
Autor:
Rajesh G. Gonnade, Trinadh Kaicharla, Akkattu T. Biju, Santhivardhana Reddy Yetra, Sunita S. Kunte
Publikováno v:
Organic Letters. 15:5202-5205
N-Heterocyclic carbene (NHC)-catalyzed highly enantioselective lactonization of modified enals with enolizable aldehydes, proceeding via the α,β-unsaturated acylazolium intermediates, is reported. The reaction results in the asymmetric synthesis of
Autor:
Mohammad Mujahid, Sunita S. Kunte, Prashant Mujumdar, Murugan Muthukrishnan, Murugesan Sasikumar
Publikováno v:
Tetrahedron: Asymmetry. 23:1512-1515
A simple and efficient synthesis of levetiracetam has been achieved with high enantiopurity (>99%) starting from commercially available benzyl glycidyl ether. The method is amenable for industrial scale-up.
Publikováno v:
Synthetic Communications. 41:1938-1946
An efficient enantioselective synthesis of (S)-guaifenesin with >99% ee using L-proline-catalyzed α-aminoxylation of aldehyde as key step is described and explored for asymmetric syntheses of (S)-moprolol and (R)-methocarbamol.
Autor:
Santigopal Mondal, Atanu Patra, Rajesh G. Gonnade, Sunita S. Kunte, Akkattu T. Biju, Santhivardhana Reddy Yetra
Publikováno v:
ChemInform. 46
Highly enantioselective NHC-organocatalyzed synthesis of functionalized cyclopentenes proceeding via α,β-unsaturated acyl azolium intermediates is reported.