Acid catalysed cyclisation of the olefinic β-hydroxy selenide (5) afforded the cyclic compound (7) which was converted into safranal (16)via the olefinic alcohol (12), diolefinic alcohol (14), and aldehyde (15).
酸催化的烯烃类的环化β -羟基
硒化物(5,得到的环状化合物()7将其转换成
藏花醛()16)经由所述烯醇(12),二烯属醇(14),以及醛(15)。