Results 121 to 130 of about 913 (183)

Oxazolones in Organocatalysis, New Tricks for an Old Reagent

Chemistry - an Asian Journal, 2011
Oxazolones or azlactones are among the most-common starting materials for the synthesis of quaternary amino acids. Since the seminal works of Steglich and co-workers until the recent examples from Ooi and co-workers, azlactones have been the focus of ...
Ramon Rios
exaly   +2 more sources

Synthesis and characterization of orthopalladated complexes containing tridentate C,N,O-oxazolones [PDF]

Polyhedron, 2022
The (Z)-4-aryliden-2-(2-acetoxyphenyl)-5(4H)oxazolones 1a-1c react with H2SO4 to give the corresponding (Z)-4-aryliden-2-(2-hydroxyphenyl)-5(4H)oxazolones 2a-2c.The molecular structures of 1c and 2a have been determined by X-ray diffraction methods, and ...
Ana I Jiménez, Esteban Pablo Urriolabeitia, David Dalmau   +2 more
exaly   +2 more sources

5-Oxazolones. Part V. Reaction of 4-alkylidene-5(4h)-oxazolones with ethyl 3-oxo-4-triphenylphosphoranylidene-butyrate

Tetrahedron, 1991
The reaction of 4-alkylidene-5(4H)-oxazolones 2a-e with ethyl 3-oxo-4-triphenylphosphoranylidene-butyrate 1 affords dihydrobenzoxazoles 3a-c and the diastereoisomeric 1,3-cyclohexanedione ylides 4a-e and 5a-e.
Maria Luisa Gelmi, Francesca Clerici, Donato Pocar   +2 more
exaly   +2 more sources

5(4H)-oxazolones. Part XIII. A new synthesis of 4-ylidene-5(4H)-oxazolones by the Stille reaction

Tetrahedron, 1999
4-Chloromethylene-2-phenyl-5(4H)-oxazolone 1 was used as the starting material for the preparation of a series of 4-ylideneoxazolones 3 by the Stille reaction.
Maria Luisa Gelmi, Francesca Clerici
exaly   +2 more sources

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Anti-oxazolone hybridomas and the structure of the oxazolone idiotype.

The Journal of Immunology, 1983
Abstract Antibodies raised in several mouse and rat strains against the hapten 2-phenyloxazolone (phOx, "oxazolone") regularly contain a fraction recognized by antiidiotypic reagents. We have studied this response in BALB/c and DBA/2 mice by generating over fifty anti-phOx antibody-secreting hybridoma clones.
M, Kaartinen, G M, Griffiths, P H, Hamlyn, A F, Markham, K, Karjalainen, J L, Pelkonen, O, Mäkelä, C, Milstein   +7 more
openaire   +2 more sources

Anti‐Oxazolone Hybridomas and Strain Distribution of the Oxazolone Idiotype

Scandinavian Journal of Immunology, 1983
Antibodies produced in the primary response to the hupten 2‐phenyl oxazolone (OX) express a eruss‐reactive idiotype in BALB/c and DBA/2 mice. We studied the response in hyperimmunized mice, using ascites produced after multiple immunizations with an OX conjugate and by generating monoclonal antibodies. A competitive radioimmunoassay was developed using
J L, McKimm-Breschkin, A M, Breschkin
openaire   +2 more sources

5(2H)‐Oxazolones and 5(4H)‐Oxazolones

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Carlos Cativiela, Maria D. Diaz‐de‐Villegas   +1 more
openaire   +1 more source

2(3H)‐Oxazolones and 2(5H)‐Oxazolones

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Takehisa Kunieda, Hirofumi Matsunaga
openaire   +1 more source

Benzylidene-Oxazolones as Molecular Photoswitches

Organic Letters, 2012
The synthesis and photochemical study of a family of molecular switches inspired by the green fluorescent protein (GFP) chromophore is presented. These compounds can be easily synthesized, and their photophysical properties may be tuned. Due to their efficient photoisomerization and high stability, these compounds can be switched on/off by using light ...
Marina, Blanco-Lomas, Pedro J, Campos, Diego, Sampedro   +2 more
openaire   +2 more sources

4‐Pyranyliden‐oxazolone‐(5)

Archiv der Pharmazie, 1967
AbstractAus 4‐Pyronen und N‐Acylaminosäuren bzw. 2‐Phenyloxazolon‐(5) entstehen 4‐Pyranyliden‐oxazolone‐(5), die mit Alkoholen, primären und sekundären Aminen zu Pyranyliden‐aminosäurederivaten oder Pyridinylidenoxazolonen reagieren können.
F, Eiden, A, Engelhardt
openaire   +2 more sources