Výsledky vyhledávání - "Nigel P. C. Walker"

[2:1] and [2:2] cycloadducts from N-sulfonylamines and azomethines

Autor: Andreas Lender, Ernst Schaumann, Nigel P. C. Walker

Publikováno v: Tetrahedron Letters. 56:4800-4803

The title compounds react to give [2:1] cycloadducts with a dithiatriazine structure. However, the least sterically hindered sulfonylamine and a 3,4-dihydroisoquinoline react in a highly unusual [4+4] cycloaddition.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39422b01295d990b9e8e400efd070bf6
https://doi.org/10.1016/j.tetlet.2015.06.060

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INT131: a selective modulator of PPAR gamma

Autor: Alykhan, Motani, Zhulun, Wang, Jennifer, Weiszmann, Lawrence R, McGee, Gary, Lee, Qingxiang, Liu, Jocelyn, Staunton, Zexu, Fang, Helen, Fuentes, Michelle, Lindstrom, Jinsong, Liu, Donna H T, Biermann, Juan, Jaen, Nigel P C, Walker, R Marc, Learned, Jin-Long, Chen, Yang, Li

Publikováno v: Journal of molecular biology. 386(5)

The nuclear hormone receptor peroxisome proliferator-activated receptor gamma (PPAR gamma; NR1C3) plays a central role in adipogenesis and is the molecular target of the thiazolidinedione class of antidiabetic drugs. To overcome the well-known shortc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::816141759a288fdf42e4b309677bc44f
https://pubmed.ncbi.nlm.nih.gov/19452630

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Structural studies of arylazo and arylimino compounds.15N NMR and X-ray crystallographic studies of azo–hydrazo tautomerism

Autor: Richard J. Kennedy, Helen M. Dawes, Michael B. Hursthouse, Nigel P. C. Walker, Joseph A. Connor

Publikováno v: J. Chem. Soc., Perkin Trans. 2. :203-207

15 N NMR measurements on several diarylazo, arylhydrazonopyrazolone, diarylazomethine and arylaminomethylidenepyrazolone compounds are reported. The presence of hydrazo tautomers is recognised by NOE experiments. The crystal structures of 4-(2,6-dibr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f056799f2a6db90432456f78a284c06c
https://doi.org/10.1039/p29900000203

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ChemInform Abstract: Structural Studies of Arylazo and Arylimino Compounds. 15N NMR and X-Ray Crystallographic Studies of Azo-Hydrazo Tautomerism

Autor: Helen M. Dawes, Richard J. Kennedy, Michael B. Hursthouse, Joseph A. Connor, Nigel P. C. Walker

Publikováno v: ChemInform. 21

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f3671572e1ce372cd660d7a020956be3
https://doi.org/10.1002/chin.199014047

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X-Ray structural studies of stereoisomeric bi(14H-dibenzo[4,5:6,7][1,3]diazepino[2,1-a]isoindol-14-ylidene)s obtained from the reaction of 2,2′-diaminobiphenyl with o-phthalaldehyde

Autor: Joan M. Insole, Hwang Huaun-Yong, Nigel P. C. Walker, D. Muriel Hall

Publikováno v: J. Chem. Soc., Perkin Trans. 1. :1763-1769

Reaction of 2,2′-diaminobiphenyl with o-phthalaldehyde yielded a number of products including two bi-(14H-dibenzo[4,5:6,7][1,3]diazepino[2,1-a]isoindol-14-ylidene)s, (A) and (B); each was converted on heating into a third isomer (D). The crystal st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fc685461d1a4fed53f1d85d6bdf2b2b
https://doi.org/10.1039/p19870001763

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Triosmium clusters with ligands derived from αβ-unsaturated ketones. X-ray crystal structures of [Os3H(CO)10(cis-MeCCHCOMe)] and [Os3H(OH)(CO)9(PMe2Ph)]

Autor: Michael B. Hursthouse, Antony J. Deeming, Ian P. Rothwell, Peter J. Manning, Nigel P. C. Walker

Publikováno v: J. Chem. Soc., Dalton Trans.. :2039-2045

The compounds [Os3H2(CO)10] and [Os3(CO)10(MeCN)2] both react with the enones RCHCHCOMe (R = H, Me, or Ph) by metallation at the vinylic C–H groups to give compounds of type [Os3H(CO)10-(RC4H4O)], certain of which were also obtained from [Os3H2(CO)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e239a3128b9ecdf6a6ba93bfa4149fa7
https://doi.org/10.1039/dt9840002039

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Tributyltin(IV) penta(methoxycarbonyl)cyclopentadienides [SnBu3L2]+-[C5(CO2Me)5]–. X-Ray crystal structure of the diaquatributyltin(IV) salt, [SnBu3(OH2)2][C5(CO2Me)5], and electron spin resonance spectrum of the radical C5(CO2Me)5

Autor: Jeffrey P. Goddard, Alwyn G. Davies, Michael B. Hursthouse, Nigel P. C. Walker

Publikováno v: J. Chem. Soc., Dalton Trans.. :1873-1877

The ionic penta(methoxycarbonyl)cyclopentadienide salts of the diligated tributyltin(IV) cation, [SnBu3L2][C5(CO2Me)5][L = H2O, OP(NMe2)3, or HCONMe2], have been isolated, and the crystal structure of the diaqua compound has been determined. The cati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35ffb906aa0f8cd2a45416cf4f9dbbaa
https://doi.org/10.1039/dt9860001873

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Co-ordination chemistry of higher oxidation states. Part 13. Synthesis and properties of alkali-metal hydroxo-oxo-osmate(VIII) compounds and the molecular structure of Cs[O4Os(µ-OH)OsO4]

Autor: Michael Webster, Nigel P. C. Walker, Hilary C. Jewiss, William Levason, M. Tajik

Publikováno v: J. Chem. Soc., Dalton Trans.. :199-203

The reaction of concentrated aqueous solutions of caesium or rubidium hydroxide with osmium tetraoxide, in various ratios produced the osmates(VIII), M2[OsO4(OH)2], M[OsO4(OH)], and M[O4Os(OH)OsO4](M = Rb or Cs). Potassium and sodium hydroxide produc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d85a54991687518c864a57f096cf9281
https://doi.org/10.1039/dt9850000199

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Metallation of 2-ethenylpyridine at triosmium clusters: X-ray crystal structures of the open trinuclear clusters [Os3H(CO)9L(NC5H4CHCH)](L = CO or PMe2Ph)

Autor: Kevin Burgess, H. Diane Holden, Nigel P. C. Walker, Roy Peters, Jack Lewis, Michael B. Hursthouse, Antony J. Deeming, Brian F. G. Johnson, Peter J. Manning

Publikováno v: J. Chem. Soc., Dalton Trans.. :85-90

The compounds [Os3H2(CO)10] and [Os3(CO)10(MeCN)2] each react with 2-ethenylpyridine (NC5H4CHCH2) with C–H bond cleavage at the terminal carbon atom to give [Os3H(CO)10-(NC5H4CHCH)], (1). An analogous compound [Os3H(CO)9(PMe2Ph)(NC5H4CHCH)], (2), i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cfa8ed288866020bf527577c4ef1aedb
https://doi.org/10.1039/dt9850000085

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Decarboxylation of vinylene carbonate at triosmium clusters; X-ray crystal structure of the µ3-formylmethylidene compound [Os3(CHCHO)(CO)10]

Autor: Alejandro J. Arce, Antony J. Deeming, Nigel P. C. Walker, Michael B. Hursthouse

Publikováno v: J. Chem. Soc., Dalton Trans.. :1861-1864

Vinylene carbonate [graphic omitted]O reacts at room temperature with [Os2H3(CO)10] to give a good yield of the vinyloxy cluster [Os3H(OCHCH2)(CO)10](1). A similar decarboxylation occurs on reaction with [Os3(CO)10(MeCN)2] to give the formylmethylide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8c8d3d04e9306f5bf1aa209c8b900b6
https://doi.org/10.1039/dt9870001861

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