Synthesis of nonlinear optical chromophores containing electron-excessive and -deficient heterocyclic bridges. The auxiliary donor-acceptor effects
Push-pull substituted nonlinear optical chromophores with thiazole and thiophene rings and interposed ethylene units as π-conjugated bridges were synthesized. The effects of the nature and location of the heterocycles on the energy of the charge transfer transition for the chromophores are discussed.
Shu, Ching-Fong,Wang, Yuh-Kai
p. 833 - 835
(2007/10/03)
An Easy General Synthesis of 2-(N,N-Dialkylamino)thiazol-5-yl Aldehydes and Ketones
Reaction between 2-chloro-5-thiazolyl-lithium and N,N-dialkylformamides or amides gave 2-N,N-dialkylaminothiazol-5-yl aldehydes or ketones on quenching with water.Quenching with acid gave 2-chlorothiazole-5-yl aldehydes or ketones, from which chloride was easily displaced by free amines.
Sawhney, Indu,Wilson, John R. H.
p. 329 - 331
(2007/10/02)
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