Carbonium ion photochemistry. Photoisomerization of protonated eucarvone

1971 ◽  
Vol 93 (9) ◽  
pp. 2323-2325 ◽  
Author(s):  
Ronald F. Childs ◽  
K. E. Hine
Keyword(s):  
Carbonium Ion ◽  
Ion Photochemistry

Simple theoretical models of elimination reactions on polar catalysts; Dehydration reactivity of secondary alcohols on acidic and basic catalysts

1985 ◽  
Vol 50 (4) ◽  
pp. 920-929 ◽  
Author(s):  
Jiří Sedláček
Keyword(s):  
Experimental Data ◽  
Quantum Chemical ◽  
Theoretical Models ◽  
Aliphatic Alcohols ◽  
Secondary Alcohols ◽  
Carbonium Ion ◽  
Dehydration Reactions ◽  
Aromatic Alcohols ◽  
Basic Catalysts ◽  
Simple Models

CNDO/2 calculations for simple models of adsorption and dehydration reactions of secondary aliphatic and aromatic alcohols on polar catalysts are presented. The models involve selected stages of elimination mechanisms of various types (E1, E2 and E1cB elimination). Calculated quantum chemical quantities were correlated with reported experimental data. It is shown that reactivities for the series of substituted phenylethanols correlate very well with the ease of carbonium ion formation. In the case of aliphatic alcohols, calculated quantities correlate generally with the reactivities on SiO2 and are in anticorrelation with the reactivities on Al2O3.NaOH.

Solvolysis of 1,2-dimethyl-exo-2-benzonorbornenyl derivatives. Direct evidence for a classical carbonium ion

1974 ◽  
Vol 96 (24) ◽  
pp. 7602-7603 ◽  
Author(s):  
Harlan L. Goering ◽  
Chiu-Shan Chang ◽  
John V. Clevenger
Keyword(s):  
Direct Evidence ◽  
Carbonium Ion
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