A short synthesis of naturally occurring and other analogues of plakinic acids that contain the 1,2-dioxolane group
作者:A.J. Bloodworth、Brian D Bothwell、Andrew N Collins、Nicola L Maidwell
DOI:10.1016/0040-4039(96)00143-8
日期:1996.3
Natural and unnatural analogues 4 of plakinic acids A, C and D have been prepared in three steps from alkan-2-ones by (i) LDA-induced condensation with ethyl 3-methylbut-2-enoate to give (2Z)-3,5-dimethylalka-2,4-dienoic acids 10, then (ii) isomerisation to the 2E-isomers 5 and finally (iii) peroxymercuriation with 30% hydrogen peroxide and reduction in situ with sodium borohydride.
al酸A,C和D的天然和非天然类似物4已通过三步法从烷烃-2-酮制备,方法是:(i)LDA诱导与3-甲基丁-2-烯酸乙酯缩合,得到(2Z)-3, 5-二甲基-2,4-二烯酸10,然后(ii)异构化为2 E-异构体5,最后(iii)用30%过氧化氢进行过氧汞化,并用硼氢化钠原位还原。