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Preparation and Characterization of Cyanovinyl‐Substituted 2‐Aminothiophenes and 2‐Aminothiazoles and Some of Their Heterooligomers
Author(s) -
Eckert Katrin,
Schröder Anke,
Hartmann Horst
Publication year - 2000
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/1099-0690(200004)2000:7<1327::aid-ejoc1327>3.0.co;2-t
Subject(s) - solvatochromism , chemistry , solvent , acceptor , organic chemistry , computational chemistry , stereochemistry , physics , condensed matter physics
The reaction of 2,2‐dicyanoethenyl‐ and 1,2,2‐tricyanoethenyl‐substituted bromoalkanes, bromomethyl benzenes, thiophenes, and furans 19‐22 with 3‐aminothioacrylamides and their 2‐azaanalogues 23 and 24 gives a series of 5‐dicyanoethenyl‐ and 5‐tricyanoethenyl‐substituted 2‐aminothiophenes, 2‐aminothiazoles and their (hetero)benzologous analogues 25‐32 . The solvatochromism, which is a characteristic feature of these donor‐acceptor substituted heterocyclic compounds, was studied in detail and correlated with the Kamlet‐Taft solvent parameters.