439600-20-1

Upstream product

• 14994-75-3 4-hydroxy-1-phenylquinolin-2(1H)-one 
• 439600-14-3 4-(1-methyl-prop-2-ynyloxy)-1-phenyl-1H-quinolin-2-one 

Relevant academic research and scientific papers

Regioselective synthesis of thieno[2,3-b]quinolin-4(9H)-ones: Occurrence of thermal [1,3] sigmatropic rearrangement

A number of hitherto unreported thieno[2,3-b]quinolin-4(9H)-ones 5a-f have been regioselectively synthesized from the corresponding 4-(prop-2-ynyloxy)quinolin-2(1H)-thiones 4a-f. The 4-(Prop-2-ynyloxy)quinolin-2(1H)-thiones 4a-f were prepared by the thionation of 4-(prop-2-ynyloxy)quinolin-2(1H)-ones 3a-f. The latter compounds were in turn prepared by the alkylation of 4-hydroxyquinolin-2(1H)-one (1).