Sterically Crowded Heterocycles. IX. New α,β-Unsaturated Ketones Containing Imidazo[1,2-a]quinoline, Imidazo[2,1-a]isoquinoline, Benzo[h]imidazo[1,2-a]quinoline and Imidazo[1,2-a]-1,10-phenanthroline Moieties
1997 ◽
Vol 62
(10)
◽
pp. 1599-1611
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Keyword(s):
(Z)-1,3-Diphenyl-3-(2-phenylimidazo[1,2-a]heteroaryl)prop-2-en-1-ones 2-6 and isomeric [1-heteroaryl-3,5-diphenylpyrrol-2-yl]phenylmethanones 17-20 were prepared by the ferricyanide oxidation of quaternary pyridinium salts 12-16. Axial chirality and helicity of the molecules of 4 and 6 are discussed using various energy data obtained by the quantum chemical PM3 method.
2000 ◽
Vol 555
(1-3)
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pp. 31-42
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Keyword(s):
1979 ◽
Vol 15
(11)
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pp. 1201-1204
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Keyword(s):
1983 ◽
Vol 48
(11)
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pp. 3307-3314
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1996 ◽
Vol 61
(1)
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pp. 126-138
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1981 ◽
Vol 17
(4)
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pp. 367-369
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Untersuchungen an quartären Pyridinium-Salzen, II / Investigation of Quaternary Pyridinium-Salts, II
1973 ◽
Vol 28
(7-8)
◽
pp. 471-474
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Keyword(s):
1974 ◽
Vol 29
(7-8)
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pp. 556-560
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Keyword(s):
1981 ◽
Vol 36
(8)
◽
pp. 1031-1036
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