Sulphenes photochemical

Reviews on the photochemistry of sulphonic acids and their derivatives and of sulphenic acids and their derivatives, and on the photochemical synthesis and transformations of organosulphur compounds, have been published. [Pg.343]

De Mayo and his coworkers262-264 have reported the photochemical isomerization of the sultones shown in Scheme 26. These compounds ring open in a manner analogous to linearly conjugated cyclohexadienones affording a sulphene intermediate. This intermedi-... [Pg.540]

The analogous hydroxybenzo[6]thiepin (234 R = OH) undergoes a secondary photoreaction to give the isomer (236), presumably via the stabilized biradical (237). The sulphene (238), arising by photochemical ring-cleavage, is... [Pg.459]

Reactions.—Full details are now available" of the photochemical and thermal [1,3] phenylthio shifts of allyl phenyl sulphides [(73)- (74)]. Oxidation of such sulphides can lead to allyl alcohols through the known sulphoxide-sulphenate equilibrium with sulphenate trapping. [Pg.136]

The photochemical transformation of peri-fused thiopyran S-oxides (76) into related pyrans and ring-opened products probably involves sulphenate esters of type (77). ... [Pg.537]

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