Thiazole-fused 3-sulfolenes 6 and 7 have been efficiently prepared from 4-bromo-3-sulfolanone 5 in one step. These 3-sulfolenes react as synthetic equivalents
Several kinds of metal oxides such as Cr_2O_3, MoO_3, V_2O_5 andBi_2O_3 were used as the catalysts for partial oxidation of methane to methanoland formaldehyde