28448-04-6
3-nitrochromen-2-one
→
~87%
40235-42-5
2H-chromeno[3,4-d]triazol-4-one
42373-56-8
4-azidochromen-2-one
~41%
54930-94-8
3-(toluene-4-sulfinyl)-chromen-2-one
40235-51-6