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Showing 25 to 36 of 517 entries
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Pd/C-mediated synthesis of indoles in water.

Beilstein journal of organic chemistry

Layek M, Lakshmi U, Kalita D, Barange DK, Islam A, Mukkanti K, Pal M.
PMID: 19936266
Beilstein J Org Chem. 2009 Sep 23;5:46. doi: 10.3762/bjoc.5.46.

We describe the utility of a Pd/C-Cu mediated method in the synthesis of 2,5-disubstituted indoles in water via a coupling-cyclization strategy. Further application of this methodology has been demonstrated in the preparation of a target indole derivative via a...

Palladium-catalyzed C-N and C-O bond formation of N-substituted 4-bromo-7-azaindoles with amides, amines, amino acid esters and phenols.

Beilstein journal of organic chemistry

Surasani R, Kalita D, Rao AV, Chandrasekhar KB.
PMID: 23209536
Beilstein J Org Chem. 2012;8:2004-18. doi: 10.3762/bjoc.8.227. Epub 2012 Nov 19.

Simple and efficient procedures for palladium-catalyzed cross-coupling reactions of N-substituted 4-bromo-7-azaindole (1H-pyrrole[2,3-b]pyridine), with amides, amines, amino acid esters and phenols through C-N and C-O bond formation have been developed. The C-N cross-coupling reaction of amides, amines and amino acid...

Synthesis of superacid-functionalized mesoporous nanocages with tunable pore diameters and their application in the synthesis of coumarins.

Chemistry (Weinheim an der Bergstrasse, Germany)

Kalita P, Sathyaseelan B, Mano A, Zaidi SM, Chari MA, Vinu A.
PMID: 20087913
Chemistry. 2010 Mar 01;16(9):2843-51. doi: 10.1002/chem.200902531.

Here we demonstrate for the first time the preparation of a triflic acid (TFA)-functionalized mesoporous nanocage with tunable pore diameters by the wet impregnation method. The obtained materials have been unambiguously characterized by XRD, N(2) adsorption, FTIR spectroscopy, and...

A photoinduced charge transfer composite of graphene oxide and ferrocene.

Physical chemistry chemical physics : PCCP

Kalita G, Sharma S, Wakita K, Umeno M, Hayashi Y, Tanemura M.
PMID: 23229324
Phys Chem Chem Phys. 2013 Jan 28;15(4):1271-4. doi: 10.1039/c2cp43427j.

We demonstrate the formation of a photoinduced charge transfer composite with graphene oxide (GO) and ferrocene (Fc) molecules. Derived insulating GO was partially reduced to improve the conductivity and modified with the Fc molecules. Transmission electron microscopy (TEM), elemental...

Common principles of voltage-dependent gating for Hv and Kv channels.

Neuron

Kalia J, Swartz KJ.
PMID: 23352157
Neuron. 2013 Jan 23;77(2):214-6. doi: 10.1016/j.neuron.2013.01.001.

Voltage-activated proton (Hv1) channels are relatives of classical voltage-activated cation channels. In this issue of Neuron, Hong et al. (2013) and Qiu et al. (2013) investigate the functional mechanisms of Hv1 gating and uncover key relationships with Kv channels.

Arrays of dipolar molecular rotors in Tris(o-phenylenedioxy) cyclotriphosphazene.

Topics in current chemistry

Zhao K, Dron PI, Kaleta J, Rogers CT, Michl J.
PMID: 24563012
Top Curr Chem. 2014;354:163-211. doi: 10.1007/128_2013_513.

Regular two-dimensional or three-dimensional arrays of mutually interacting dipolar molecular rotors represent a worthy synthetic objective. Their dielectric properties, including possible collective behavior, will be a sensitive function of the location of the rotors, the orientation of their axes,...

Current insights into surgery for intramedullary spinal cord metastases: a literature review.

International journal of surgical oncology

Kalita O.
PMID: 22312538
Int J Surg Oncol. 2011;2011:989506. doi: 10.1155/2011/989506. Epub 2011 May 26.

Intramedullary spinal cord metastasis (ISCM) is the rarest type of CNS involvement by systemic malignant tumours. Optimal management of patients with ISCMs remains ambiguous. Based on two cases reported from our department, we focused on the strategy for intramedullary...

Capsaicinoids, Polyphenols and Antioxidant Activities of .

Antioxidants (Basel, Switzerland)

Hamed M, Kalita D, Bartolo ME, Jayanty SS.
PMID: 31480665
Antioxidants (Basel). 2019 Sep 02;8(9). doi: 10.3390/antiox8090364.

Peppers (

Pentagonal-Bipyramid Ln(III) Complexes Exhibiting Single-Ion-Magnet Behavior: A Rational Synthetic Approach for a Rigid Equatorial Plane.

Inorganic chemistry

Bar AK, Kalita P, Sutter JP, Chandrasekhar V.
PMID: 29461817
Inorg Chem. 2018 Mar 05;57(5):2398-2401. doi: 10.1021/acs.inorgchem.8b00059. Epub 2018 Feb 20.

A pentadentate chelating ligand is employed for the facile synthesis of air-stable pentagonal-bipyramid Ln(III) complexes with a rigid equatorial plane. The Dy(III) analogue exhibits single-ion-magnet behavior with U

Direct Observations of a Dynamically Driven Phase Transition with in situ X-Ray Diffraction in a Simple Ionic Crystal.

Physical review letters

Kalita P, Specht P, Root S, Sinclair N, Schuman A, White M, Cornelius AL, Smith J, Sinogeikin S.
PMID: 29303337
Phys Rev Lett. 2017 Dec 22;119(25):255701. doi: 10.1103/PhysRevLett.119.255701. Epub 2017 Dec 21.

We report real-time observations of a phase transition in the ionic solid CaF_{2}, a model AB_{2} structure in high-pressure physics. Synchrotron x-ray diffraction coupled with dynamic loading to 27.7 GPa, and separately with static compression, follows, in situ, the...

Proteases and Their Inhibitors in Chronic Obstructive Pulmonary Disease.

Journal of clinical medicine

Dey T, Kalita J, Weldon S, Taggart CC.
PMID: 30154365
J Clin Med. 2018 Aug 28;7(9). doi: 10.3390/jcm7090244.

In the context of respiratory disease, chronic obstructive pulmonary disease (COPD) is the leading cause of mortality worldwide. Despite much development in the area of drug development, currently there are no effective medicines available for the treatment of this...

A Follow-up study of Gerstmann's syndrome.

Neurology India

Misra UK, Kalita J.
PMID: 29542482
Neurol India. 1995 Jan-Mar;43(1):56-57.

No abstract available.

Showing 25 to 36 of 517 entries