ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Proton-hyperfine data are reported for the radical anions generated from azulene (1) and its alkyl derivatives 2-11 in 1,2-dimethoxyethane both ‘chemically’ with K and electrolytically. The alkyl derivatives are 1,3-dimethyl- (2), 5,7-dimethyl- (3), 1,3,5,7-tetramethyl- (4), 2-methyl- (5), 4,6,8-trimethyl- (6), 2,4,6,8-tetramethyl-(7), 1,3,4,6,8-pentamethyl- (8), 1,3,4,8-tetramethyl-6-propyl- (9), 6-(tert-butyl)-1,3,4,8-tetramethyl- (10), and 1,2,3,4,6,8-hexamethylazulene (11). Alkyl substituents at the odd-numbered centers μ = 1, 3, 5, and 7 partly shift the π-spin population from the seven- to the five-membered ring, whereas those at the even-numbered centers μ = 4, 6, and 8 exert an opposite effect on the π-spin distribution.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19940770523
