Bis-epoxides were converted into trans-2,5-disubstituted-tetrahydrofuran and trans-2,6-disubstituted-tetrahydropyran derivatives using a kinetic resolution followed by cyclization, in an efficient and highly enantio- and diastereoselective manner.
使用动力学拆分随后环化,以有效且高度对映体和非对映体选择性的方式将双
环氧化物转化为反式-2,5-二取代的
四氢呋喃和反式-2,6-二取代的
四氢吡喃衍
生物。