Synthesis of 9-ethyl[1,2,5]selenadiazolo[3,4-h]quinolones by the application of modified Gould-Jacobs reaction to N-ethyl-2,1,3-benzoselenadiazol-4-amine
作者:Maroš Bella、Viktor Milata
DOI:10.3998/ark.5550190.p008.451
日期:——
An effective method for the synthesis of N-ethyl-2,1,3-benzoselenadiazolamines 11 and 15 has been described. ModifiedGould-Jacobsreaction of N-ethylbenzoselenadiazol-4-amine 15 provided 9-ethylselenadiazoloquinolone derivatives 2 and 19 in high yields. Acid-promoted ring closure of enamine 18c unexpectedly afforded completely deacetylated product - 9- ethylselenadiazoloquinolone 2. Identical product