The possibility to functionalize selectively various polyenes using hydroboration or a Vilsmeyer-type formylation was demonstrated. Reversible sulfur dioxide addition may be used in some cases to protect two double bonds in a polyene system. Reactions with mercuric acetate, thallium(III) nitrate, bromine or peracetic acid were found useful only in some cases for the selective introduction of functional
证明了使用
硼氢化或Vilsmeyer型甲酰化选择性地官能化各种多烯的可能性。在某些情况下可以使用可逆的
二氧化硫添加来保护多烯系统中的两个双键,发现与
乙酸汞,
硝酸th(III),
溴或
过乙酸的反应仅在某些情况下对选择性引入官能团有用。