synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines using silica-bonded n-propyldiethylenetriamine as a heterogeneous solid base catalyst

Authors

khodabakhsh niknam

persian gulf university alireza hosseini

persian gulf university

abstract

silica-bonded n-propyldiethylenetriamine (7) is employed as a recyclable heterogeneous solid base catalyst for the synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines through pseudo four-component condensation reaction between aromatic aldehydes, malononitrile, and 2-amino-thiophenol in refluxing ethanol. silica-bonded n-propyldiethylenetriamine showed much the same efficiency when used in consecutive reaction runs.

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Journal title:

organic chemistry research

جلد ۳، شماره ۱، صفحات ۱۶-۲۴

Keywords

[ 2 , ' a m i n o ' , 3 , 5 , ' d i c a r b o n i t r i l e ' , 6 , ' t h i o p y r i d i n e s ' , ' h e t e r o g e n e o u s c a t a l y s t s ' , ' s o l i d b a s e s ' , ' s y n t h e s i s ' , ' m u l t i ' , ' c o m p o n e n t r e a c t i o n s ' ]

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