Nitrogen bridgehead compounds. Part<b>72</b>Straightforward synthesis of 1,2,3,4-tetrahydrorutaecarpine and derivatives
作者:István Hermecz、ágnes Horváth、Benjamin Podányi、Lelle Vasvári-Debreczy、Zoltán Mészáros、György Szász、József Kökösi
DOI:10.1002/jhet.5570240427
日期:1987.7
In polyphosphoric acid, the Fischer indolization of 6-arylhydrazono-1,2,3,4,6,7,8,9-octahydro-11H-pyrido-[2,1-b]quinazolin-11-ones, obtained from 1,2,3,4,6,7,8,9-octahydro-11H-pyrido[2,1-b]quinazolin-11-ones by three pathways, afforded substituted 1,2,3,4,7,8-hexahydro-5H-13H-indolo[2′,3′:3,4]pyrido[2,1-b]quinazolin-5-ones in high yields. The structures of the 6-substituted octahydropyridoquinazolinones
在多磷酸中,6-芳基肼基-1,2,3,4,6,7,8,9-八氢-11 H-吡啶-[2,1 - b ]喹唑啉-11-酮的费歇尔吲哚化1,2,3,4,6,7,8,9-octahydro-11 H -pyrido [2,1- b ] quinazolin-11-ones通过三种途径提供了取代的1,2,3,4,7,高产率的8-六氢-5 H -13 H-吲哚并[2',3':3,4]吡啶并[2,1 - b ]喹唑啉-5-酮。通过uv,1 H和13 C nmr数据表征了6-取代的八氢吡啶并喹唑啉酮和六氢吲哚-吡喃并喹唑啉酮的结构。