5-Bromopentadienal 1b(n= 2), easily obtained from the potassium glutaconaldehyde salt, is used as precursor of ω-bromoheptatrienal 1d, ω-bromomethoxyhexatriene 2, diene diols 4, diene diones 5, 1,6-dibromohexa-1,3,5-triene 6 and 1,8 triene diol 8, of controlled configuration.
5- Bromopentadienal 1B(Ñ = 2),从
钾戊烯二醛盐容易得到,作为ω-bromoheptatrienal的前体1D,ω-bromomethoxyhexatriene 2,二烯二醇4,二烯二酮5,1,6- dibromohexa -1,3-受控构型的1,5-
三烯6和1,8
三烯二醇8。