Intramolecular free radical functionalisation of the methyl group of 5′-deoxyadenosine
作者:David Gani、Alan W. Johnson、Michael F. Lappert
DOI:10.1039/p19810003065
日期:——
3′-O-isopropylideneadenosine causes cyclisation with the 5′-methyl group to give, in yields of up to 80%, 5′-deoxy-2′,3′-O-isopropylidene-5′,8-cycloadenosine, identical with the product formed from the 5′-radical by cyclisation with the 8-position. The reactions provide an in vitro analogy for the functionalisation of the methyl group of 5′-deoxyadenosine postulated as a step in the mechanism of many
在5'-脱氧-2',3'- O-异丙基亚氨腺苷的8位上形成自由基(两种方法)可导致与5'-甲基的环化反应产生产率高达80%的5 ′-脱氧-2′,3′ - O-异亚丙基-5′,8-环腺苷,与由5′-自由基通过8位环化形成的产物相同。该反应提供了体外模拟的5'-脱氧腺苷甲基化功能,该功能被假定为许多酶辅酶B 12控制的重排反应机理中的一个步骤。