- A rigid cavity containing tetra-cobalt(III) [2 × 2] grid complex
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The synthesis and structure of a rigid, cavity containing tetra-cobalt(III) [2 × 2] grid complex using an unusual bis(bipyridine)dimethoxynaphthyridine ligand is described.
- Plante, Jeffrey P.,Jones, Paul D.,Powell, Douglas R.,Glass, Timothy E.
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- One-pot homo- and cross-coupling of diazanaphthalenes via C-H substitution: Synthesis of Bis- and Tris-diazanaphthalenes
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The transition metal-free coupling reactions of unactivated diazanaphthalenes were studied using only lithium tetramethylpiperidine (LiTMP) reagent. Symmetrical and nonsymmetrical bis-diazanaphthalenes were synthesized in moderate to high yield by homo- and cross-coupling of related monomers. In addition, the single-step synthesis of diquinoxalino [2,3-a: 2', 3'c] phenazine and 2,2': 3', 2″ - terquinoxaline using the appropriate equivalent amount of LiTMP was performed. The products were characterized by means of NMR spectroscopy and HRMS spectrometry.
- Ucar, Sefa,Dastan, Arif
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supporting information
p. 4013 - 4022
(2020/09/21)
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- 4-Piperidinecarboxamide modulators of vanilloid VR1 receptor
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This invention is directed to vanilloid receptor VR1 ligands. More particularly, this invention relates to hetero isonipecotic amides that are potent modulators of VR1 which are useful for the treatment and prevention of disease conditions in mammals.
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Page/Page column 54
(2010/11/08)
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- General synthetic method for naphthyridines and their N-oxides containing isoquinolinic nitrogen
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Substituted naphthyridines containing isoquinolinic nitrogen were synthesized by the reaction of o-ethynylpyridinecarbaldehydes with ammonia. The synthesis of their N-oxides was also achieved by a basic cyclization reaction of the same pyridine derivatives via the corresponding oximes.
- Numata, Atsushi,Kondo, Yoshinori,Sakamoto, Takao
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p. 306 - 311
(2007/10/03)
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- The amination of halogeno-2,7- and 1,8-naphthyridines
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The conversion of 1-halogeno-2,7-naphthyridines into the corresponding 1-amino compounds with KNH2/NH3, is shown, by the use of deuterated starting compounds, to proceed via an SN(AE)ipso substitution and not via an SN(AE)tele mechanism, even though convincing evidence for the formation of tele ?-adduct, 8-amino-1-halogeno-dihydro-2,7-naphthyridine, was obtained.Using the same methods, it is shown that the conversion of 2-bromo-1,8-naphthyridine into 2-amino-1,8-naphthyridine proceds, to the extent of 40percent via an odd SN(AE)tele pathway.
- Haak, H. J. W. van den,Plas, H. C. van der
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p. 235 - 238
(2007/10/02)
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