Zobrazeno 1 - 9
of 9
pro vyhledávání: '"John N. Louris"'
Publikováno v:
Journal of Heterocyclic Chemistry. 27:1721-1725
Thieno[3,2-b]pyridine 1,1-dioxide (2) undergoes Diels-Alder condensation with the dienophiles cyclopentadiene, anthracene, and naphthacene in a manner analogous to its isomer thieno[2,3-b]pyridine 1,1-dioxide (1). Compound 2 dimerizes in refluxing xy
Autor:
LeRoy H. Klemm, John N. Louris
Publikováno v:
Heterocyclic Communications. 2
Autor:
LeRoy H. Klemm, John N. Louris
Publikováno v:
Heterocyclic Communications. 1
Publikováno v:
Journal of Chromatography A. 259:453-458
Relative retention data are reported for biphenyl, naphthalene, seven fluorine substituted biphenyls (bearing 1, 2, 8, and 10 fluorine atoms per molecule), and mono- and octafluoronaphthalenes in gas chromatography with (a) silicone fluid DC 710, (b)
Publikováno v:
Journal of Heterocyclic Chemistry. 22:1249-1252
Thieno[3,2-b]pyridine (1) is oxidized to N-oxide 1a by means of m-chloroperoxybenzoic acid (83%). Compound 1a forms adducts with hydrogen chloride and picric acid and gives ring substitution alpha or gamma to the heteronitrogen atom. Thus, 1a plus ni
Publikováno v:
The Journal of Organic Chemistry. 48:1451-1454
Publikováno v:
Journal of Heterocyclic Chemistry. 21:1135-1140
Treatment of the N-oxide 1a of thieno[2,3-b]pyridine (1) with either (a) acetic anhydride and ethyl cyanoacetate or (b) benzoyl chloride and an enamine of cyclohexanone (Hamana reactions) serves to introduce a C-substituent at the 4-position of 1. In
Autor:
John N. Louris, LeRoy H. Klemm
Publikováno v:
Journal of Heterocyclic Chemistry. 21:785-789
Thieno[3,2-b]pyridine (1) is synthesized in 65% overall yield for two steps which consist of addition of toluene-α-thiol to 2-ethynylpyridine plus vacuum pyrolysis of the addend (7). Cis and trans forms of 7 are described. Compound 1 undergoes (a) e
Publikováno v:
Journal of Heterocyclic Chemistry. 18:1383-1387
Electron-impact mass spectra are presented for various substituted thieno[2,3-b]- and thieno[3,2-b]-pyridines. In particular, it is shown that chemical structures of alkylthienopyridines can be correlated (a) with their mass spectral fragmentation pa