低价钛引起的芳基二硫醚与α,β-不饱和酯(腈)的反应

芳香族二硫醚在低价钛试剂作用下，S-S键还原断裂成芳硫负离子，再与α,β-不饱和酯(腈)发生Michael加成反应，得到β-硫代酸酯(腈)。

The reaction of diaryl disulfide with α,β-unsaturated esters or α,β-unsaturated nitriles induced by low-valent titanium

The S-S bond in diaryl disulfide wree reduced by low-valent titanium reagent to produce titanium arylsulfolate. The new sulfolate anion reacted with α,β-unsaturated esters or α,β-unsaturated nitriles to give β-sulfo esters and β-sulfo nitriles, respectively.