Restricted Rotation in Aryl Amines. VIII. Ring Nitrogen Derivatives of Diaminomesitylene

1950 ◽  
Vol 72 (1) ◽  
pp. 128-132 ◽  
Author(s):  
Roger Adams ◽  
John B. Campbell
Keyword(s):  
Restricted Rotation ◽  
Aryl Amines ◽  
Ring Nitrogen ◽  
Derivatives Of

Analogs and derivatives of tenoxicam. 1. Synthesis and antiinflammatory activities of analogs with different residues on the ring nitrogen and the amide nitrogen

1987 ◽  
Vol 30 (4) ◽  
pp. 678-682 ◽  
Author(s):  
Dieter Binder ◽  
Otto Hromatka ◽  
Franz Geissler ◽  
Karl Schmied ◽  
Christian R. Noe ◽  
...  
Keyword(s):  
Amide Nitrogen ◽  
Ring Nitrogen ◽  
Derivatives Of

scholarly journals Derivatives of aryl amines containing the cytotoxic 1,4-dioxo-2-butenyl pharmacophore

2010 ◽  
Vol 20 (5) ◽  
pp. 1510-1515 ◽  
Author(s):  
Amitabh Jha ◽  
Chandrani Mukherjee ◽  
Ashok K. Prasad ◽  
Virinder S. Parmar ◽  
Manjula Vadaparti ◽  
...  
Keyword(s):  
Aryl Amines ◽  
Derivatives Of

Übergangsmetallkomplexe mit Nitroxidradikalen: Palladium-, Platin-, Pentamethylcyclopentadienyl-rhodium- und -iridium-Komplexe sowie α-Aminocarboxylatkomplexe mit Donor-haltigen Derivaten des 2,5-Dihydroimidazol-l-oxyls / Transition Metal Complexes of Nitroxide Radicals, Palladium, Platinum, Pentamethylcyclopentadienyl Rhodium and Iridium Complexes, and α-Aminocarboxylate Complexes with Derivatives of 2,5-Dihydroimidazole-l-oxyls

1998 ◽  
Vol 53 (1) ◽  
pp. 101-109 ◽  
Author(s):  
Frank Hintermaier ◽  
Sylvia Helding ◽  
Leonid B. Volodarsky ◽  
Karlheinz Sünkel ◽  
Kurt Polbom ◽  
...  
Keyword(s):  
Nitrogen Atom ◽  
Molecular Structures ◽  
Iridium Complexes ◽  
X Ray Diffraction ◽  
Chelate Complexes ◽  
X Ray ◽  
Ring Nitrogen ◽  
Derivatives Of ◽  
Ring Nitrogen Atom ◽  
Palladium Platinum

2,5-Dihydroimidazoline-l-oxyl radicals I, II with imino substituents coordinate to Pd(II) and Pt(II) complexes with formation of the N,N chelate complexes 1-6. With oxygen containing substituents either monodentate N-coordination to give 8 or N ,O chelate formation to give 9 takes place, depending on the position of the oxygen atom relative to the ring nitrogen atom. With radicals III that also have the second ring nitrogen atom oxidized and the Rh(III) or Ir(III) complexes [Cp*MCl2]2 the O , O chelates 11 -13 could be obtained, while with Na2PdCl4 the heterocycle was destroyed with formation of a N,N chelate complex 10 of an α-nitrosooxime ligand. The orthopalladated 2,2,5,5 tetramethyl-4-phenyl-2,5-dihydroimidazoline-l-oxyl complex 7a reacts with several a-amino acidates under splitting of the dichloro bridge with formation of the C,N/N,O-bis-chelate complexes 7b-f. The molecular structures of 2 and 10 were determined by X-ray diffraction.

The proton magnetic resonance spectra of N-nitroso derivatives of sarcosine, proline and iminodiacetic acid

1971 ◽  
Vol 24 (9) ◽  
pp. 1949 ◽  
Author(s):  
FHC Stewart
Keyword(s):  
Magnetic Resonance ◽  
Long Range ◽  
Proton Magnetic Resonance ◽  
Iminodiacetic Acid ◽  
Conformational Isomerism ◽  
Nitroso Group ◽  
Restricted Rotation ◽  
Derivatives Of ◽  
Shielding Effects ◽  
Magnetic Resonance Spectra

The proton magnetic resonance spectra of various N-nitroso derivatives of sarcosine, L-proline, and iminodiacetic acid, including some protected dipeptides, have been obtained. Magnetic non-equivalence and conformational isomerism arising from restricted rotation of the nitroso group are discussed in relation to the reported behaviour of other nitrosamines. Long-range shielding effects on protons at a considerable distance from the anisotropic nitrosamino centre were readily detected with these compounds.

Restricted Rotation in Aryl Amines. IX. Diaminodurene Derivatives

1950 ◽  
Vol 72 (1) ◽  
pp. 132-135 ◽  
Author(s):  
Roger Adams ◽  
Nils K. Nelson
Keyword(s):  
Restricted Rotation ◽  
Aryl Amines
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