Merging Nucleophilic and Hydrogen Bonding Catalysis: An Anion Binding Approach to the Kinetic Resolution of Amines

2009 ◽  
Vol 131 (47) ◽  
pp. 17060-17061 ◽  
Author(s):  
Chandra Kanta De ◽  
Eric G. Klauber ◽  
Daniel Seidel
Keyword(s):  
Hydrogen Bonding ◽  
Kinetic Resolution ◽  
Anion Binding

Merging Nucleophilic and Hydrogen Bonding Catalysis: An Anion Binding Approach to the Kinetic Resolution of Propargylic Amines

2010 ◽  
Vol 132 (39) ◽  
pp. 13624-13626 ◽  
Author(s):  
Eric G. Klauber ◽  
Chandra Kanta De ◽  
Tejas K. Shah ◽  
Daniel Seidel
Keyword(s):  
Hydrogen Bonding ◽  
Kinetic Resolution ◽  
Anion Binding

ChemInform Abstract: A Dual-Catalysis/Anion-Binding Approach to the Kinetic Resolution of Allylic Amines.

ChemInform ◽  
2011 ◽  
Vol 42 (36) ◽  
pp. no-no
Author(s):  
Eric G. Klauber ◽  
Nisha Mittal ◽  
Tejas K. Shah ◽  
Daniel Seidel
Keyword(s):  
Kinetic Resolution ◽  
Anion Binding ◽  
Allylic Amines ◽  
Dual Catalysis

Experimental and Theoretical Evidence of the Bidentate Binding Mode of Dichloroacetamido Groups at the Upper Rim of Calix[4]arene Hydrogen-Bonding Anion Receptors

2004 ◽  
Vol 69 (5) ◽  
pp. 1063-1079 ◽  
Author(s):  
Alessandro Casnati ◽  
Francesca Bonetti ◽  
Francesco Sansone ◽  
Franco Ugozzoli ◽  
Rocco Ungaro
Keyword(s):  
Hydrogen Bonding ◽  
Binding Mode ◽  
Association Constants ◽  
Anion Binding ◽  
Anion Receptors ◽  
Binding Properties ◽  
Carboxylate Anions ◽  
Molecular Modeling Studies ◽  
Theoretical Evidence ◽  
Upper Rim

Calix[4]arenes in the 1,3-alternate conformation (1-3) and bearing activated amide groups at the upper rim have been synthesized and their anion binding properties studied and compared with conformationally mobile (4) or cone (Ib) receptors having the same binding groups. Association constants determined in CDCl3 show a stronger complexation for Y-shaped carboxylate anions and a higher efficiency for receptors (Ib and 3) bearing dichloroacetamido moieties as hydrogen bonding donor groups. Molecular modeling studies performed on the cone derivative (Ib) and its 1,3-alternate isomer (10) and ab initio calculations on 4-methoxyaniline derivatives (11-13) used as simplified models, reveal that the α,α-dichloroacetamido moieties bind anions in a bidentate fashion using both the N-H and the CHCl2 as hydrogen bonding donor groups. This explains the higher efficiency in carboxylate binding found for Ib and 3 that incorporate the dichloroacetamido binding unit in their structures.

N-confused porphyrins as new scaffolds for supramolecular architecture

2004 ◽  
Vol 08 (01) ◽  
pp. 67-75 ◽  
Author(s):  
Hiromitsu Maeda ◽  
Hiroyuki Furuta
Keyword(s):  
Hydrogen Bonding ◽  
Metal Complexes ◽  
Divalent Metal ◽  
Anion Binding ◽  
Supramolecular Architecture ◽  
Square Planar ◽  
Donor And Acceptor ◽  
Hydrogen Bonding Networks ◽  
In Cis ◽  
Divalent Metal Complexes

The peripheral nitrogen of N -confused porphyrins ( NCP ) can serve as a hydrogen bonding donor and acceptor, and a metal coordination site as well. NCP forms versatile dimers with the assistance of metal ions such as Pd II, Pt II, Zn II, Cd II, Hg II, Mn II and Fe II. The square-planar divalent metal complexes of C 6 F 5-substituted NCP with Cu II, Ni II and Pd II act as efficient anion binding receptors. The doubly N -confused porphyrins ( N 2 CP ), possessing both N and NH at the periphery, form self-assembled 1-D hydrogen bonding networks, whose orientations differ in cis (zigzag) and trans (straight) isomers.

Participation of Benzene Hydrogen Bonding upon Anion Binding

2005 ◽  
Vol 7 (18) ◽  
pp. 3993-3996 ◽  
Author(s):  
Sungjae In ◽  
Seung Joo Cho ◽  
Kyu Hwan Lee ◽  
Jongmin Kang
Keyword(s):  
Hydrogen Bonding ◽  
Anion Binding

Synthesis, structural characterization and anion binding studies of palladium macrocycles with hydrogen-bonding ligands

2007 ◽  
pp. 3516 ◽  
Author(s):  
Pilar Diaz ◽  
Jorge A. Tovilla ◽  
Pablo Ballester ◽  
Jordi Benet-Buchholz ◽  
Ramón Vilar
Keyword(s):  
Hydrogen Bonding ◽  
Structural Characterization ◽  
Anion Binding ◽  
Binding Studies

A Dual-Catalysis Anion-Binding Approach to the Kinetic Resolution of Amines: Insights into the Mechanism via a Combined Experimental and Computational Study

2015 ◽  
Vol 137 (17) ◽  
pp. 5748-5758 ◽  
Author(s):  
Nisha Mittal ◽  
Katharina M. Lippert ◽  
Chandra Kanta De ◽  
Eric G. Klauber ◽  
Thomas J. Emge ◽  
...  
Keyword(s):  
Kinetic Resolution ◽  
Computational Study ◽  
Anion Binding ◽  
Dual Catalysis

Hydrogen Bonding and Anion Binding in Structures of Tris(pyrazolyl)boratenickel(II) and Phosphate Esters

2008 ◽  
Vol 2008 (25) ◽  
pp. 4012-4018 ◽  
Author(s):  
M. Dolores Santana ◽  
Luisa López-Banet ◽  
Gabriel García ◽  
Luís García ◽  
José Pérez ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Anion Binding ◽  
Phosphate Esters

Anion Binding Induces Helicity in a Hydrogen-Bonding Receptor: Crystal Structure of a 2,6-Bis(anilinoethynyl)pyridinium Chloride

2009 ◽  
Vol 9 (10) ◽  
pp. 4247-4249 ◽  
Author(s):  
Charles A. Johnson ◽  
Orion B. Berryman ◽  
Aaron C. Sather ◽  
Lev N. Zakharov ◽  
Michael M. Haley ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Anion Binding ◽  
Pyridinium Chloride
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