Neutral CH and cationic CH donor groups as anion receptors

2014 ◽  
Vol 43 (17) ◽  
pp. 6198-6213 ◽  
Author(s):  
Jiajia Cai ◽  
Jonathan L. Sessler
Keyword(s):  
Hydrogen Bond ◽  
Molecular Machines ◽  
Anion Receptors ◽  
Hydrogen Bond Donors

Neutral and cationic CH hydrogen bond donors have been actively used in various shape persistent macrocycles, foldamers and “molecular machines”.

scholarly journals Anion receptors containing thiazine-1,1-dioxide heterocycles as hydrogen bond donors

2010 ◽  
Vol 6 ◽  
Author(s):  
Hong-Bo Wang ◽  
James A Wisner ◽  
Michael C Jennings
Keyword(s):  
Hydrogen Bond ◽  
Crystal Structures ◽  
Anion Recognition ◽  
Anion Receptors ◽  
X Ray ◽  
Phenyl Rings ◽  
Hydrogen Bond Donors

The synthesis, X-ray crystal structures and anion recognition properties of two receptors containing thiazine-1,1-dioxide heterocycles as hydrogen bond donating subunits are reported. The newly synthesized receptors display much different anion selectivities in acetone-d 6 than N,N′-diphenyl-1,3-disulfonamidobenzene that was used as a comparison. The selectivity exhibited by one of the new receptors for chloride anions can be attributed to greater steric demand in the cleft formed, in part, by its terminal phenyl rings; an effect that is absent in the comparison receptor.

Gold setting the “gold standard” among transition metals as a hydrogen bond acceptor – a theoretical investigation

2017 ◽  
Vol 46 (15) ◽  
pp. 4960-4967 ◽  
Author(s):  
Ferdinand Groenewald ◽  
Helgard G. Raubenheimer ◽  
Jan Dillen ◽  
Catharine Esterhuysen
Keyword(s):  
Hydrogen Bond ◽  
Transition Metals ◽  
Theoretical Investigation ◽  
Gold Standard ◽  
Hydrogen Bond Acceptor ◽  
Hydrogen Bond Donors

MP2/aug-cc-pVTZ-pp calculations show that the Au(i) atom of dimethylaurate behaves as a hydrogen-bond acceptor to a range of hydrogen-bond donors.

scholarly journals Anion-Abstraction Catalysis: The Cooperative Mechanism of α-Chloroether Activation by Dual Hydrogen-Bond Donors

ACS Catalysis ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 4616-4620 ◽  
Author(s):  
David D. Ford ◽  
Dan Lehnherr ◽  
C. Rose Kennedy ◽  
Eric N. Jacobsen
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bond Donors

scholarly journals New approaches to organocatalysis based on C–H and C–X bonding for electrophilic substrate activation

2016 ◽  
Vol 12 ◽  
pp. 2834-2848 ◽  
Author(s):  
Pavel Nagorny ◽  
Zhankui Sun
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Recent Progress ◽  
Halogen Bonds ◽  
Hydrogen Bond Donor ◽  
New Approaches ◽  
Substrate Activation ◽  
Non Covalent Interactions ◽  
Covalent Interactions ◽  
Hydrogen Bond Donors

Hydrogen bond donor catalysis represents a rapidly growing subfield of organocatalysis. While traditional hydrogen bond donors containing N–H and O–H moieties have been effectively used for electrophile activation, activation based on other types of non-covalent interactions is less common. This mini review highlights recent progress in developing and exploring new organic catalysts for electrophile activation through the formation of C–H hydrogen bonds and C–X halogen bonds.

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