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Nucleophilic substitutions on the pyridine ring with enolate anions

โœ Scribed by Francis X. Smith; Gordon G. Evans

Book ID
112123865
Publisher
Journal of Heterocyclic Chemistry
Year
1976
Tongue
English
Weight
307 KB
Volume
13
Category
Article
ISSN
0022-152X

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๐Ÿ“œ SIMILAR VOLUMES

A novel nucleophilic substitution of the
A novel nucleophilic substitution of the pyridine ring
โœ P. Tomasik; A. Woszczyk ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 112 KB

There are relatively few methods for direct nuoleophilic substitution of the pyridine ring. The a&nation of pyridine using either sodium amide or aodium in liquid ammonia' a8 well as in aminee2\*3 ie widely known and applied.

Nucleophilic substitution at the pyridin
Nucleophilic substitution at the pyridine ring. Kinetics of the reaction of 2-chloro-3,5-dinitropyridine with arylthiolates in methanol
โœ Ezzat A. Hamed ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 129 KB ๐Ÿ‘ 2 views

The reaction rates of 2-chloro-3,5-dinitropyridine 1 with a series of arylthiolates 2a-h in methanol have been measured at 25ยฐC. The products are the corresponding 2-thioaryl-3,5-dinitropyridine 3a-h. Good Hammett correlation with value ฯช1.19 was obtained suggesting an elimination-addition mechanism