Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Sze Chak Yau"'
Autor:
John B. Brazier, Sze Chak Yau, Alan R. Kennedy, Nicholas C. O. Tomkinson, Julian H. Rowley, Leopold Samulis, Timothy J. K. Gibbs, James Alexis Platts
Publikováno v:
ChemInform. 46
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e36fb0ac3d5ed2f0372e5af02e4838
https://doi.org/10.1002/chin.201520079
https://doi.org/10.1002/chin.201520079
Autor:
Kerri L. Jones, Adrian Hall, Paul H. Taylor, Teyrnon C. Jones, Nicholas C. O. Tomkinson, Robert Poerzig, Sze Chak Yau, Niall M. Killeen
Publikováno v:
Synlett. 2006:3435-3438
The first method for the direct formation of α-oxycarbonates from both aldehydes and ketones is described. N-Methyl-O-alkoxyformate hydroxylamine hydrochloride reagents can be prepd. in two high-yielding steps from N-Boc-N-methylhydroxylamine and we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::677a68e39803eedd5e4518a656c399c2
https://doi.org/10.1055/s-2006-956473
https://doi.org/10.1055/s-2006-956473
Autor:
Alan R. Kennedy, Leopold Samulis, Sze Chak Yau, Julian H. Rowley, James Alexis Platts, Nicholas C. O. Tomkinson, John Benedict Brazier, Timothy J. K. Gibbs
Publikováno v:
Organicbiomolecular chemistry. 13(1)
The effect on catalyst performance of altering substituents at the 2-position of the Macmillan imidazolidinone has been examined. Condensation of L-phenylalanine N-methyl amide with acetophenone derivatives results in a series of imidazolidinones who
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b6b91b121f94c89bd1d996d06f4814a
https://pubmed.ncbi.nlm.nih.gov/25347784
https://pubmed.ncbi.nlm.nih.gov/25347784
Publikováno v:
Tetrahedron Letters. 50:3625-3627
A simple method for the asymmetric α-oxybenzoylation of aldehydes is presented. Treatment of a series of aldehydes with benzoyl peroxide in the presence of a MacMillan imidazolidinone leads directly to the α-oxybenzoylated product with excellent le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e61a9573060f77d4280b6be725fdee6f
https://doi.org/10.1016/j.tetlet.2009.03.082
https://doi.org/10.1016/j.tetlet.2009.03.082
Autor:
Simon J. Coles, Sze Chak Yau, Jim Iley, Janet E. Smith, Raymond C. F. Jones, Mark R. J. Elsegood, James Richard Dickson, Vickie McKee
Publikováno v:
ChemInform. 40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a1ebfb97166d45c57db3e197a70c95b
https://doi.org/10.1002/chin.200933169
https://doi.org/10.1002/chin.200933169
Autor:
Janet E. Smith, Simon J. Coles, Jim Iley, Sze Chak Yau, Mark R. J. Elsegood, James Dickson, Vickie McKee, Raymond C. F. Jones
Publikováno v:
Organic letters. 11(7)
The fluorescent dihydropyrimido[1,2-a]quinoline chromophore of the pyoverdin siderophores has been synthesized by a biomimetic oxidative cyclization using an iodine(III) reagent, followed by elimination and dehydrogenation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0da8cbcc4819425fa81851de1c09752d
https://pubmed.ncbi.nlm.nih.gov/19260647
https://pubmed.ncbi.nlm.nih.gov/19260647
ChemInform Abstract: Direct α-Oxytosylation of Carbonyl Compounds: One-Pot Synthesis of Heterocycles
Autor:
Sze Chak Yau, Oliver R. S. John, Niall M. Killeen, Nicholas C. O. Tomkinson, Deborah A. Knowles, Mark C. Bagley
Publikováno v:
ChemInform. 39
N-Methyl-O-tosylhydroxylamine is an effective reagent for the direct α-oxytosylation of carbonyl compounds. The reactions proceed smoothly at room temperature in the presence of both moisture and air and functional group tolerance in the substrate i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adbebf2285e68006355ed2427ae34680
https://doi.org/10.1002/chin.200812063
https://doi.org/10.1002/chin.200812063
Autor:
Oliver R. S. John, Niall M. Killeen, Deborah A. Knowles, Mark C. Bagley, Nicholas C. O. Tomkinson, Sze Chak Yau
Publikováno v:
Organic letters. 9(20)
N-Methyl-O-tosylhydroxylamine is an effective reagent for the direct alpha-oxytosylation of carbonyl compounds. The reactions proceed smoothly at room temperature in the presence of both moisture and air and functional group tolerance in the substrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a15548c60910b7717671dd80917517d6
https://pubmed.ncbi.nlm.nih.gov/17824710
https://pubmed.ncbi.nlm.nih.gov/17824710
Autor:
Kerri L. Jones, Nicholas C. O. Tomkinson, Adrian Hall, Sze Chak Yau, Niall M. Killeen, Teyrnon C. Jones, Edouard P. Huguet
Publikováno v:
ChemInform. 38
A simple one-pot method for the direct introduction of carbamates α to carbonyl groups that proceeds at room temp. in the presence of both moisture and air was developed. Treatment of aldehydes and both cyclic and acyclic ketones with N-methyl-O-car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fbafad8ab65971cecfe0c308da823e2
https://doi.org/10.1002/chin.200724085
https://doi.org/10.1002/chin.200724085
Publikováno v:
Organic & Biomolecular Chemistry. 11:2198
The reaction of glycine-N-methyl amide with paraformaldehyde in the presence of ytterbium triflate (1 mol%) leads to a novel cage structure 6 which is chiral at nitrogen. Single crystal X-ray analysis and DFT calculations suggest this cage structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::368d904353739fb5973c786d462a5541
https://doi.org/10.1039/c3ob27458f
https://doi.org/10.1039/c3ob27458f