Studies with arylhydrazonopyridinones: Synthesis of new arylhydrazono thieno[3,4-c]pyridinones as novel D2T2 dye class; classical verse green methodologies.
A variety of arylhydrazonopyridinones were prepared via heating cyanoacetamides with ethyl acetoacetate in absence of solvent under reflux conventionally or ultrasound irradiation or in a microwave oven. The formed products 5 and 6 could be readily converted to thienopyridones. Attempted addition of the latter to electron poor olefins afforded only arylhydrazonopyridinones.
Al-Zaydi
Khadijah M
KM
Department of Chemistry, Girl's College of Education, Jeddah, P.O. Box 50918, Jeddah 21533, Saudi Arabia. Alzaydi_kh@yahoo.com
Borik
Rita M
RM
Elnagdi
Mohamed H
MH