Zobrazeno 1 - 10
of 27
pro vyhledávání: '"W J Logan"'
Autor:
Raul Laasner, Zijian Zhou, Warren S. Warren, Steven J. Malcolmson, Angus W. J. Logan, Thomas Theis, Roman V. Shchepin, Jacob R. Lindale, Volker Blum, Eduard Y. Chekmenev, Johannes F. P. Colell
Publikováno v:
Chem Commun (Camb)
Signal Amplification By Reversible Exchange (SABRE) is a particularly simple hyperpolarisation approach. However, compared to other hyperpolarisation methods, SABRE is more limited in substrate scope. Therefore, it is critical to understand and overc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66dcdd9fd590230f72b5659eebdc95cb
https://doi.org/10.1039/d0cc01330g
https://doi.org/10.1039/d0cc01330g
Autor:
Thomas Theis, Jin Yu, Raul Laasner, Angus W. J. Logan, Eduard Y. Chekmenev, Zijian Zhou, Johannes F. P. Colell, Roman V. Shchepin, Volker Blum, Danila A. Barskiy, Warren S. Warren
Publikováno v:
The Journal of Physical Chemistry Letters. 8:3008-3014
Parahydrogen is an inexpensive and readily available source of hyperpolarization used to enhance magnetic resonance signals by up to four orders of magnitude above thermal signals obtained at ∼10 T. A significant challenge for applications is fast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::165ad21cf8b427988f29ea02e5ea8447
https://doi.org/10.1021/acs.jpclett.7b00987
https://doi.org/10.1021/acs.jpclett.7b00987
Autor:
Angus W. J. Logan, Thomas Theis, Martin C. Feiters, Steven J. Malcolmson, Meike Emondts, Junu Bae, Gerardo X. Ortiz, Warren S. Warren, Johannes F. P. Colell, Floris P. J. T. Rutjes, Bernhard Blümich, Qiu Wang, Eduard Y. Chekmenev, Roman V. Shchepin, Peter Spannring, Kun Shen
Publikováno v:
Journal of the American Chemical Society, 139, 7761-7767
Journal of the American Chemical Society, 139, 23, pp. 7761-7767
Journal of the American Chemical Society, 139, 23, pp. 7761-7767
Signal Amplification By Reversible Exchange (SABRE) is an inexpensive, fast, and even continuous hyperpolarization technique that uses para-hydrogen as hyperpolarization source. However, current SABRE faces a number of stumbling blocks for translatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a12ad72e27dd5d4dd9d2f6dbeaa7e4
https://hdl.handle.net/2066/175417
https://hdl.handle.net/2066/175417
Autor:
Thomas Theis, Johannes F. P. Colell, Steven J. Malcolmson, Angus W. J. Logan, Warren S. Warren
Publikováno v:
Chemistry – A European Journal. 22:10777-10781
NMR with thermal polarization requires relatively concentrated samples, particularly for nuclei with low abundance and low gyromagnetic ratios, such as (15) N. We expand the substrate scope of SABRE, a recently introduced hyperpolarization method, to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f3b43c1ec97f90ecfb89e5979c6afc
https://doi.org/10.1002/chem.201602393
https://doi.org/10.1002/chem.201602393
Autor:
Thomas Theis, Johannes F. P. Colell, Kun Shen, Angus W. J. Logan, Warren S. Warren, Qiu Wang, Junu Bae, Gerardo X. Ortiz, Steven J. Malcolmson
Publikováno v:
Angew Chem Int Ed Engl
Diazirines are an attractive class of potential molecular tags for magnetic resonance imaging owing to their biocompatibility and ease of incorporation into a large variety of molecules. As recently reported, (15)N(2)-diazirine can be hyperpolarized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ec671779a0c41c4d058a11bcee9240e
https://pubmed.ncbi.nlm.nih.gov/28664640
https://pubmed.ncbi.nlm.nih.gov/28664640
Autor:
Michal S. Hallside, Leo Marx, Simon J. Sprague, Amber L. Thompson, Angus W. J. Logan, Jonathan W. Burton, Vincenzo Garzya, Robert W. Foster
Publikováno v:
Organic Letters. 16:4078-4081
A mild, diastereoselective synthesis of fused lactone-pyrrolidinones using an oxidative radical cyclization is reported. The methodology is demonstrated in a formal synthesis of (-)-salinosporamide A.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::417d51903d3cca72510cafdc4fa9b652
https://doi.org/10.1021/ol501662t
https://doi.org/10.1021/ol501662t
Autor:
Eduard Y. Chekmenev, Roman V. Shchepin, Steven J. Malcolmson, Thomas Theis, Danila A. Barskiy, Warren S. Warren, Zijian Zhou, Qiu Wang, Gerardo X. Ortiz, Angus W. J. Logan, Johannes F. P. Colell
Publikováno v:
The Journal of Physical Chemistry. C, Nanomaterials and Interfaces
Signal Amplification by Reversible Exchange (SABRE) is a fast and convenient NMR hyperpolarization method that uses cheap and readily available para-hydrogen as a hyperpolarization source. SABRE can hyperpolarize protons and heteronuclei. Here we foc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::654f6deaa052f7065668c2f63cc233af
https://pubmed.ncbi.nlm.nih.gov/28392884
https://pubmed.ncbi.nlm.nih.gov/28392884
Autor:
Thomas Theis, Eduard Y. Chekmenev, William P. Huhn, Steven J. Malcolmson, Yesu Feng, Angus W. J. Logan, Warren S. Warren, Qiu Wang, Volker Blum, Gerardo X. Ortiz, Kevin Claytor
Publikováno v:
Science Advances
More than 10,000-fold enhanced magnetic resonance signals with >20-min signal lifetimes on universal biomolecular markers.
Conventional magnetic resonance (MR) faces serious sensitivity limitations which can be overcome by hyperpolarization meth
Conventional magnetic resonance (MR) faces serious sensitivity limitations which can be overcome by hyperpolarization meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f0c5d165f0b21b43dde4942cbdf8063
https://doi.org/10.1126/sciadv.1501438
https://doi.org/10.1126/sciadv.1501438
Publikováno v:
Organic Letters. 14:2940-2943
Manganese(III) acetate mediated oxidative radical cyclizations have been used to synthesize a range of densely functionalized and sterically congested cyclopentane-lactones. A number of the resulting lactones contain vicinal all-carbon quaternary ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed7eb7219e6ab55e05b2127a582756b7
https://doi.org/10.1021/ol300625u
https://doi.org/10.1021/ol300625u
Autor:
Amber L. Thompson, Leo Marx, Jonathan W. Burton, Robert W. Foster, Vincenzo Garzya, Angus W. J. Logan, Simon J. Sprague, Michal S. Hallside
Publikováno v:
ChemInform. 46
A mild methodology is developed for the synthesis of a range of fused bicyclic lactone-pyrrolidinones.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::790ae826a9cbf804ae075792ae985f7e
https://doi.org/10.1002/chin.201507176
https://doi.org/10.1002/chin.201507176