Department of Organic Chemistry, Faculty of Pharmacy, University of Granada, 18071, Granada, Spain.
J Chem Ecol. 1993 Jun;19(6):1265-83. doi: 10.1007/BF00987385.
The synthesis of (2S,5R)-(1) and (2R,5R)-2-methyl-1,6-dioxaspiro [4.5]decane (2) from (2RS,5R,8R,9R,10S)-8,9,10-trihydroxy-2-methyl-1, 6-dioxaspiro[4.5]decane (8), obtained in five steps fromD-fructose using Wittig's methodology, reduction, and spiroketalation, has been accomplished by a Corey dideoxygenation at C-8,9, followed by a Barton deoxygenation at C-10, of the appropriately protected derivatives.
(2S,5R)-(1)和(2R,5R)-2-甲基-1,6-二氧杂螺[4.5]癸烷(2)的合成本身从(2RS,5R,8R,9R,10S)-8,9,10-三羟基-2-甲基-1,6-二氧杂螺[4.5]癸烷(8)开始,通过 Wittig 法、还原和螺缩酮化,从 D-果糖中得到,共五步。通过 Corey 脱除 C-8,9 位的两个羟基,然后对相应保护的衍生物进行 Barton 脱除 C-10 位的氧,从而完成了(2S,5R)-(1)和(2R,5R)-2-甲基-1,6-二氧杂螺[4.5]癸烷(2)的合成。