Abstract
Heating of o -ethynylanilines with
isoselenocyanates directly resulted in the 6-exo -dig mode ring-closure reaction of the
adducts to give the (Z )-2-imino-4-methylene-3-selenaquinolines
in moderate to good yields. Based on this convenient, solvent-free, catalyst-free
method, several 3-selenaquinoline derivatives (3,1-benzoselenazines)
were easily obtained in one pot. Successful application of the microwave-assisted
synthesis of these compounds was also investigated.
Key words
o -ethynyaniline - isoselenocyanate - 3-selenaquinoline - 6-exo mode
cyclization - microwave
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