Computational insights into the S3transfer reaction: A special case of double group transfer reaction featuring bicyclically delocalized aromatic transition state geometries

2017 ◽  
Vol 38 (22) ◽  
pp. 1966-1973 ◽  
Author(s):  
Andrés G. Algarra
Keyword(s):  
Transition State ◽  
Transfer Reaction ◽  
Group Transfer ◽  
Special Case ◽  
Double Group

ChemInform Abstract: Homolytic Alkyl Group Transfer Reaction of Photoactivated Alkylcobaloximes into Thiols.

ChemInform ◽  
1989 ◽  
Vol 20 (5) ◽  
Author(s):  
M. KIJIMA ◽  
K. MIYAMORI ◽  
T. SATO
Keyword(s):  
Alkyl Group ◽  
Transfer Reaction ◽  
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.

Dual-Face Nucleoside Scaffold Featuring a Stereogenic All-Carbon Quaternary Center. Intramolecular Silicon Tethered Group-Transfer Reaction

2014 ◽  
Vol 16 (21) ◽  
pp. 5698-5701 ◽  
Author(s):  
Guillaume Tambutet ◽  
Fabiola Becerril-Jiménez ◽  
Starr Dostie ◽  
Ryan Simard ◽  
Michel Prévost ◽  
...  
Keyword(s):  
Transfer Reaction ◽  
Group Transfer ◽  
Quaternary Center

Synthese und Photolyse von 5-Diazo-5-[13C] -homoadamantanon-(4).

1976 ◽  
Vol 31 (5) ◽  
pp. 586-588 ◽  
Author(s):  
Klaus-Peter Zeller
Keyword(s):  
Carboxylic Acid ◽  
Transfer Reaction ◽  
Uv Light ◽  
Intermediate Formation ◽  
Ring Expansion ◽  
Group Transfer ◽  
Total Absence ◽  
Adamantane Skeleton ◽  
Diazo Group

The synthesis of 5-diazo-5-[13C]-homoadamantan-4-one (12) is achieved by ring expansion of adamantanone with 13C-labelled diazomethane, conversion of the resulting 4-[13C]-homoadamantan-4-one (10) to the hydroxymethylene compound (11), followed by deformylative diazo group transfer reaction. The photolysis of 12 with pyrex filtered UV-light in dioxane-water (10:1) yields adamantan-2-carboxylic acid containing all the label in the 2-position of the adamantane skeleton. The total absence of isotope scrambling excludes the intermediate formation of the polycyclic oxiren (16) (Scheme 3).

Double group-transfer reactions: a theoretical (AM1) approach

1992 ◽  
Vol 57 (25) ◽  
pp. 6731-6735 ◽  
Author(s):  
Antonio Frontera ◽  
Guillem A. Suner ◽  
Pere M. Deya
Keyword(s):  
Transfer Reactions ◽  
Group Transfer ◽  
Double Group

Interplay between aromaticity and strain in double group transfer reactions to 1,2-benzyne

2016 ◽  
Vol 37 (14) ◽  
pp. 1265-1273 ◽  
Author(s):  
Israel Fernández ◽  
Fernando P. Cossío
Keyword(s):  
Transfer Reactions ◽  
Group Transfer ◽  
Double Group

The Transition State of the Phosphoryl-Transfer Reaction Catalyzed by the Lambda Ser/Thr Protein Phosphatase

1999 ◽  
Vol 121 (27) ◽  
pp. 6382-6390 ◽  
Author(s):  
Richard H. Hoff ◽  
Pamela Mertz ◽  
Frank Rusnak ◽  
Alvan C. Hengge
Keyword(s):  
Transition State ◽  
Protein Phosphatase ◽  
Transfer Reaction ◽  
Phosphoryl Transfer
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