substituent造句
31. The substituent is deuterium.
32. Results We obtained the epoxidation products of phenyl epoxy ethane. That with substituent on the benzene ring has higher yield, and that the substituent at 5-have higher yield than at 3-.
33. By contrast, the exo adduct possesses a trans relationship between the dienophile electron-withdrawing group and the trans diene substituent .
34. These clusters show different fluxional behaviour and ligands according to various substituent around the metals of osmium.
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