The synthesis of novel polycyclic heterocyclic ring systems via photocyclization.: 20.: Benzo[h]thieno[3′,2′:4,5]thieno[2,3-c]quinoline, benzo[f]thieno[3′,2′:4,5]thieno[2,3-c]quinoline, benzo[f]thieno[3′,2′:4,5]thieno[2,3-c]tetrazolo[1,5-a]quinoline and benzo[f]thieno[3′,2′:4,5]thieno[2,3-c][1,2,4]triazolo[4,3-a]quinoline

被引:11
|
作者
Luo, JK [1 ]
Federspiel, RF [1 ]
Castle, RN [1 ]
机构
[1] Univ S Florida, Dept Chem, Tampa, FL 33620 USA
关键词
D O I
10.1002/jhet.5570350637
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Four previously unknown polycyclic heterocyclic ring systems, namely, benzo[h]thieno[3',2':4, 5]thieno[2,3-c]quinoline (6), benzo[h]thieno[3',2':4,5]thieno[2,3-c]quinoline (11), benzo[f]thieno[3',2':4,5] thieno[2,3-c] tetrazolo[1,5-a]quinoline (12) and benzo[f]thieno [3',2':4,5] thieno[2,3-c][1,2,4] triazolo[4,3-a]quinoline (13), were synthesized via oxidative photocyclization. Unequivocal total assignments of the proton and carbon nmr spectra of 6 and 11 were made through the concerted usage of COSY, HMQC and HMBC two-dimensional nmr spectroscopic methods.
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页码:1441 / 1444
页数:4
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