Decomposition of an oxodiazirine: free versus incarcerated within the cavities of two α-cyclodextrins
作者:Jean-Luc Mieusset、Bernhard Thiel、Michael Abraham、Mirjana Pačar、Udo H. Brinker
DOI:10.1016/j.tetlet.2012.12.008
日期:2013.2
photolyzing its α-cyclodextrin (6-Cy) complex, for which a Job plot indicated a 1:2 guest-to-host stoichiometry. Solid-phase photolysis of 1@(6-Cy)2 produced tricyclo[3.3.0.02,8]octan-3-one (3) and bicyclo[3.3.0]oct-5-en-3-one (4) in a 93:7 ratio. In contrast, gas-phase thermolysis of free 1 resulted in a 47:53 ratio of products 3 and 4. Thus, incarceration of a guest compound within a fitting microenvironment
oxodiazirine的化学1,通过光解其α环糊精(研究6 -赛扬2位到主机的化学计量:复杂,为此,作业曲线图所表示的1)。1 @(6 - Cy)2的固相光解产生了三环[3.3.0.0 2,8 ] octan -3-one(3)和双环[3.3.0] oct-5-en-3-one(4)以93:7的比例。相比之下,游离1的气相热解导致产物3和4的比例为47:53。因此,即使当涉及高反应性物质例如卡宾时,在两个宿主分子的合适的微环境中嵌顿客体化合物也导致强烈的化学选择性。