Synthesis of dihydro-1-pyrrolo-and tetrahydropyrido[1,2-] indoles via a modified madelung reaction
作者:W. Verboom、E.O.H. Orlemans、H.J. Berga、H.W. Scheltinga、D.N. Reinhoudt
DOI:10.1016/s0040-4020(01)88057-1
日期:1986.1
lactam moiety dihydropyrrolo- (10), tetrahydropyrido[1,2-]indole (11), or dihydro-1-1-benzazeptne (12) derivatives are foraed. Pyrrolo[1,2-]indole 10c has been converted into the corresponding quinone 15b. Starting from naphthaleneacetonitrile 20, prepared in 5 steps fron 2,3-dichloronaphthoquinone, the 5,10-dioxo-1-pyrrolo[1,2-] benz []indole 22 is obtained upon treatment with base and subsequent oxidation
在苄基位置具有不同的吸电子基团的1-(2-甲基苯基)内酰胺9在氢化钠或丁醇钾的影响下环化。根据内酰胺部分的环大小,制得二氢吡咯并(10),四氢吡啶并[1,2- ]吲哚(11)或二氢-1-苯并氮杂(12)衍生物。吡咯并[1,2- ]吲哚10c已被转化为相应的醌15b。从5步制备的萘乙腈20开始,由2,3-二氯萘醌,5,10-二氧-1-吡咯并[1,2- ]苯并[ ]吲哚22 在用碱处理并随后用硝酸铈铵氧化保护的对苯二酚官能团后,得到Aβ。