Cleavage of the oxygen bridge in 8-oxabicyclo[3.2.1]octanes by reductive elimination
作者:Baldur Föhlisch、Günter Kreiselmeier
DOI:10.1016/s0040-4020(01)01051-1
日期:2001.12
Several 2(4)-bromo- or chloro-8-oxabicyclo[3.2.1]oct-6-en-3-ones (2), available by [4+3] cycloaddition of monohalogeno-oxyallyl intermediates with furans, were reduced to halogenated 8-oxabicyclo[3.2.1]oct-6-en-3endo-ols (6) and saturated analogues (7). Cycloheptene-1,3trans-diols (8,11) were formed preferentially by reductive elimination.
减少了2 [4]-溴或氯8-氧杂双环[3.2.1] oct-6-en-3-ones(2),可通过[4 + 3]将单卤代-氧基烯丙基中间体与呋喃环加成得到得到卤代的8-氧杂双环[3.2.1] oct-6-en-3内醇(6)和饱和的类似物(7)。环庚烯-1,3-反式-diols(8,11)通过还原消除优先形成。