In this work we present simple preparation of original trityl group containing glassy luminescent 6-styryl substitutedderivatives of 2-(2-tert-butyl-4H-pyran-4-ylidene)malononitrile (DWK-1TB), 2-(2-tert-butyl-4H-pyran-4-ylidene)-2-ethyl-2-cyanoacetate (KWElmars Zarins...
Recyclization of 4-arylamino-2- tert -butyl-5-oxo-2,5-dihydrofuran-2-yl acetates with ethyl cyanoacetate in the presence of triethylamine afforded the corresponding ethyl 2-amino-1-aryl-5-(3,3-dimethyl-2-oxobutylidene)-4-oxo-1 H -4,5-dihydropyrrole-3-carboxylates....