Carboxyl group participation in sulfate and sulfamate group transfer reactions

1982 ◽  
Vol 47 (9) ◽  
pp. 1745-1750 ◽  
Author(s):  
Andrew Hopkins ◽  
Andrew Williams
Keyword(s):  
Transfer Reactions ◽  
Carboxyl Group ◽  
Group Transfer ◽  
Group Participation

Synthesis and Catalytic Properties of 4-Aryl-2,3-dihydro-4H-pyrimido[2,3-b]benzothiazoles for Asymmetric Acyl or Carboxyl Group Transfer Reactions

2011 ◽  
Vol 76 (16) ◽  
pp. 6678-6685 ◽  
Author(s):  
Baby Viswambharan ◽  
Tatsuya Okimura ◽  
Satoko Suzuki ◽  
Sentaro Okamoto
Keyword(s):  
Catalytic Properties ◽  
Transfer Reactions ◽  
Carboxyl Group ◽  
Group Transfer

ChemInform Abstract: Synthesis and Catalytic Properties of 4-Aryl-2,3-dihydro-4H-pyrimido[2,3-b]benzothiazoles for Asymmetric Acyl or Carboxyl Group Transfer Reactions.

ChemInform ◽  
2011 ◽  
Vol 42 (50) ◽  
pp. no-no
Author(s):  
Baby Viswambharan ◽  
Tatsuya Okimura ◽  
Satoko Suzuki ◽  
Sentaro Okamoto
Keyword(s):  
Catalytic Properties ◽  
Transfer Reactions ◽  
Carboxyl Group ◽  
Group Transfer

Correlation of the solid-state reactivities of racemic 2,4(6)-di-O-benzoyl-myo-inositol 1,3,5-orthoformate and its 4,4′-bipyridine cocrystal with their crystal structures

2014 ◽  
Vol 70 (11) ◽  
pp. 1040-1045 ◽  
Author(s):  
Majid I. Tamboli ◽  
Vir Bahadur ◽  
Rajesh G. Gonnade ◽  
Mysore S. Shashidhar
Keyword(s):  
Solid State ◽  
Self Assembly ◽  
Transfer Reaction ◽  
Acyl Transfer ◽  
Transfer Reactions ◽  
Group Transfer ◽  
Hydrogen Bonding Interactions ◽  
Benzoyl Group ◽  
The Stability ◽  
Group Migration

Racemic 2,4(6)-di-O-benzoyl-myo-inositol 1,3,5-orthoformate, C21H18O8,(1), shows a very efficient intermolecular benzoyl-group migration reaction in its crystals. However, the presence of 4,4′-bipyridine molecules in its cocrystal, C21H18O8·C10H8N2,(1)·BP, inhibits the intermolecular benzoyl-group transfer reaction. In(1), molecules are assembled around the crystallographic twofold screw axis (baxis) to form a helical self-assembly through conventional O—H...O hydrogen-bonding interactions. This helical association places the reactive C6-O-benzoyl group (electrophile, El) and the C4-hydroxy group (nucleophile, Nu) in proximity, with a preorganized El...Nu geometry favourable for the acyl transfer reaction. In the cocrystal(1)·BP, the dibenzoate and bipyridine molecules are arranged alternately through O—H...N interactions. The presence of the bipyridine molecules perturbs the regular helical assembly of the dibenzoate molecules and thus restricts the solid-state reactivity. Hence, unlike the parent dibenzoate crystals, the cocrystals do not exhibit benzoyl-transfer reactions. This approach is useful for increasing the stability of small molecules in the crystalline state and could find application in the design of functional solids.

Termination and Transfer Reactions in the Group Transfer Polymerizations of Acrylates Catalyzed by Mononuclear Early d-Block and f-Block Metallocenes:  A DFT Study

2007 ◽  
Vol 26 (9) ◽  
pp. 2157-2166 ◽  
Author(s):  
Simone Tomasi ◽  
Horst Weiss ◽  
Tom Ziegler
Keyword(s):  
Dft Study ◽  
Transfer Reactions ◽  
Group Transfer

N3-(Arylthio-, Aralkylthio- and Alkylthio)-5,5-dimethylhydantoins: Sulfenyl Group Transfer Reactions and Their Propertied

Heterocycles ◽  
1990 ◽  
Vol 30 (1) ◽  
pp. 367 ◽  
Author(s):  
Ken'ichi Takeda ◽  
Kusuo Horiki
Keyword(s):  
Transfer Reactions ◽  
Group Transfer
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