(+)-trans-whiskey lactone [(4S,5R)-5-butyl-4-methyldihydrofuran-2(3H)-one] were synthesized stereoselectively by using a radical cyclization reaction as a key step. All three molecules were synthesized from a common cyclic acetal intermediate. alcohols - pheromones - lactones - radical reactions - stereoselective synthesis
(3 S,4 S)-3-甲基辛-4-醇,(4 S,5 S)-4-甲基壬基-5-醇和(+)-反式
威士忌内酯[(4 S,5 R)-以自由基环化反应为关键步骤,立体选择性地合成了5-丁基-4-甲基二氢
呋喃-2(3 H)-one] 。所有三个分子均由常见的环状
缩醛中间体合成。 醇-信息素-内酯-自由基反应-立体选择性合成