Main Title |
Valence Isomerization of Dihydropyridines. |
Author |
Marvel, Elliot N. ;
|
CORP Author |
Oregon State Univ., Corvallis. Dept. of Chemistry. |
Year Published |
1967 |
Report Number |
PHS-WP-0079; |
Stock Number |
PB-214 988 |
Additional Subjects |
( Pyridines ;
Cyclization) ;
Organic salts ;
Pyridinium compounds
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-214 988 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
28p |
Abstract |
An investigation of the mechanism of the formation of phenylpyridinium ion from Konig's salt has been carried out. The rate of ring closure in methanol solution was increased by added base. An increase of base concentration increased the rate only up to the point at which the base concentration was equivalent to the salt concentration. The effect was independent of the nature of the base. A mechanism was postulated involving a rate determining valence isomerization of the free base derived from Konig's salt to a dihydropyridine. Similar results were shown to pertain with substituted Konig's salts. Rates were measured for methyl, methoxyl, chloride and fluorine containing salts. As a part of the mechanism a folding and unfolding process for the triene chain of the salt was proposed. |
NTIS Title Notes |
Terminal progress rept. 1 Jan 65-31 Aug 67. |
PUB Date Free Form |
31 Aug 67, |
Category Codes |
7C; 59D |
NTIS Prices |
PC A03/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326539250 |
Origin |
NTIS |
Type |
CAT |