Gas-phase acid-induced nucleophilic displacement reactions. 8. Structural analysis of intermediate ions formed by the decomposition of .beta.-arylethyl onium ions

1988 ◽  
Vol 110 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Simonetta. Fornarini ◽  
Cinzia. Sparapani ◽  
Maurizio. Speranza
Keyword(s):  
Structural Analysis ◽  
Gas Phase ◽  
Nucleophilic Displacement ◽  
Displacement Reactions

The gas phase reactivity of the dimethylchloronium ion with alkylbenzenes

1981 ◽  
Vol 59 (15) ◽  
pp. 2412-2416 ◽  
Author(s):  
John A. Stone ◽  
Margaret S. Lin ◽  
Jeffrey Varah
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Aromatic Hydrocarbons ◽  
Relative Rate ◽  
Ion Source ◽  
Nucleophilic Displacement ◽  
Rate Of Reaction ◽  
Displacement Reactions ◽  
Bonded Complexes

The reactivity of the dimethylchloronium ion with a series of aromatic hydrocarbons has been studied in a high pressure mass spectrometer ion source using the technique of reactant ion monitoring. Benzene is unreactive but all others, from toluene to mesitylene, react by CH3+ transfer to yield σ-bonded complexes. The relative rate of reaction increases with increasing exothermicity in line with current theories of nucleophilic displacement reactions.

Gas-phase nucleophilic displacement reactions

1995 ◽  
Vol 30 (12) ◽  
pp. 1653-1662 ◽  
Author(s):  
William N. Olmstead ◽  
John I. Brauman
Keyword(s):  
Gas Phase ◽  
Nucleophilic Displacement ◽  
Displacement Reactions

Gas-phase nucleophilic displacement reactions

1977 ◽  
Vol 99 (13) ◽  
pp. 4219-4228 ◽  
Author(s):  
William N. Olmstead ◽  
John I. Brauman
Keyword(s):  
Gas Phase ◽  
Nucleophilic Displacement ◽  
Displacement Reactions

Gas-Phase Ion Chemistry of Siloxide and Silamide Ions by Using the Flowing Afterglow. Unusual Rearrangements Involving SiO and SiS Bond Formation

1989 ◽  
Vol 42 (4) ◽  
pp. 489 ◽  
Author(s):  
RAJ Ohair ◽  
JC Sheldon ◽  
JH Bowie ◽  
R Damrauer ◽  
CH Depuy
Keyword(s):  
Gas Phase ◽  
Exchange Reactions ◽  
Ion Chemistry ◽  
Simple Correlation ◽  
Flowing Afterglow ◽  
Gas Phase Ion Chemistry ◽  
Nucleophilic Displacement ◽  
Displacement Reactions ◽  
Gas Phase Ion ◽  
Sulfur Containing

Siloxide ions undergo O/S exchange reactions with suitable sulfur-containing neutrals, e.g. H3SiO-+CS2 → H3SiS-+COS. Silamide ions similarly undergo NR/O and NR/S exchange reactions together with nucleophilic displacement reactions, e.g. Me3SiNMe + CO2 → Me3SiO-+MeNCO →No simple correlation between rate and mechanism is observed for all the studied reactions.

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