Condensationtion of 3-hydroxy pyridine alkyl isocyanides and dialkyl acetylenedicarboxylate: synthesis of 4H-chromenes
محورهای موضوعی : Journal of Chemical Reactivity and Synthesis
Mahsa Mahpeyma
1
(Department of Organic Chemistry, Karaj Branch, Islamic Azad university, Karaj, Iran)
Bita Mohtat
2
(Department of Organic Chemistry, Karaj Branch, Islamic Azad university, Karaj, Iran)
کلید واژه: 3-hydroxy pyridine, dialkyl acetylene dicarboxylates, Alkyl isocyanide, multi component reaction, 4H-chromenes,
چکیده مقاله :
The reactive intermediate generated by the addition of tert-butyl and 1,1,3,3-tetramethyl butyl isocyanide and cyclohexyl isocyanide to dialkyl acetylenedicarboxylate was trapped by 3-hydroxy pyridine to produce highly functionalized 4H-chromenes in fairly good yields.
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