Formation of glycols and carbonates

Under similar conditions, 1,4-diphenyl-l,3-butadiene (57) affords 2,5-diphenylfurane (58) [232]. The latter is presumably formed via rearrangement of a 1,2-epoxy intermediate. 

Styrene is oxidized to the dimethoxy derivative 59 with molecular oxygen in boiling MeOH in the presence of PhTeTePh as catalyst [233]. Under similar conditions indene is converted to dimethoxyindane. 

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