different between thiopyran vs thiochromone

English

thiopyran (plural thiopyrans)

(organic chemistry) An unsaturated six-membered heterocycle consisting of five carbon atoms. one sulfur atom and two double bonds

thio- +? chromone

thiochromone (plural thiochromones)

(organic chemistry) 1,4-benzothiopyrone, a derivative of benzopyran with a substituted keto group on the thiopyran ring.

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