ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Iminoformylation Reaction of Substituted Crotonnitriles. III. Stereochemistry and Intramolecular Mobility of 4-Amino-1.1-dicyano-buta-1.3-dienes1H- and 13C-n.m.r. spectroscopic investigations show the preference of s-trans configuration and the push-pull character of the investigated 4-amino-1,1-dicyano-buta-1,3-dienes. Dynamic 1H- and 13C-n.m.r. data for the rotation process about the C—N bond are determined. The activation energies are discussed with respect to electronic and steric effects of substituents and to solvents polarity.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19893310102
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