The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 21. Naphtho[2′,1′:4,5]thieno[2,3-c]naphtho[1,2-f]-quinoline, naphtho[2′,1′:4,5]thieno[2,3-c]naphtho[1,2-f][1,2,4]-triazolo[4,3-a]quinoline and naphtho[2′,1′:4,5]thieno[2,3-c
作者:Jiann-Kuan Luo、Ronald F. Federspiel、Raymond N. Castle
DOI:10.1002/jhet.5570370128
日期:2000.1
Photocyclization of 3-chloro-N-(3-phenanthryl)naphtho[1,2-b]thiophene-2-carboxamide (12) furnished only one of the two possible isomers, i.e., naphtho[2′,1′:4,5]thieno[2,3-c]naphtho[1,2-f]quinolin-6(5H)-one (13), which was further elaborated to yield the unsubstituted ring system 7, its triazole 8 and tetrazole 9. The structural confirmation of 7 was accomplished by the total assignment of its 1H and 13C nmr spectra
3-氯-N-(3-菲基)萘并[1,2 - b ]噻吩-2-羧酰胺(12)的光环化仅提供了两种可能的异构体之一,即萘并[2',1':4, 5]噻吩并[2,3- c ]萘并[1,2 - f ]喹啉-6(5 H)-one(13),进一步制备得到未取代的环系统7,其三唑8和四唑9。7的结构确认是通过1 H和13的总分配来完成的C nmr光谱利用协同的二维nmr光谱实验。