Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Tony M. Raynham"'
Publikováno v:
The Journal of Organic Chemistry. 67:1802-1815
The Garner aldehyde-derived methylene alkene 5 and the corresponding benzyloxycarbonyl compound 25 undergo hydroboration with 9-BBN-H followed by palladium-catalyzed Suzuki coupling reactions with aryl and vinyl halides. After one-pot hydrolysis−ox
Autor:
E.A. Conway, D.N. Hurst, Elizabeth Keech, HA Overton, J.R. Greening, A.D. Campbell, Maria Grazia Carr, N.S. Jennings, R.M. Dunsdon, Tony M. Raynham, J.M. Bennett, C.S. Wilkinson, S. Jordan, F.X. Wilson, Paul S. Jones, KP Stenson, P.B. Kay, J. King-Underwood, Tci Wilkinson, Ggm Canning, B. K. Handa, M.A. O'Brien, Attwood
Publikováno v:
Scopus-Elsevier
Hepatitis C virus (HCV) is the cause of the majority of transfusion-associated hepatitis and a significant proportion of community-acquired hepatitis worldwide. Infection by HCV frequently leads to persistent infections that result in a range of clin
Publikováno v:
Tetrahedron Letters. 40:5263-5266
The Garner aldehyde-derived methylene alkene has been hydroborated using 9-BBN and the resulting organoborane employed in palladium-catalysed Suzuki coupling reactions to produce, after hydrolysis-oxidation, a range of novel amino acids as their N-BO
Publikováno v:
Tetrahedron Letters. 39:4377-4380
The presence of the quinazolin-4(3H)-one (Q) ring in 1-(Q)-2-vinylaziridine (2) can be used to control the stereochemistry of the 3-membered ring-opening; participation by the quinazolinone carbonyl oxygen brings about ring-opening with retention of
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2783-2794
3-Amino-2-[(S)-1-hydroxy-2,2-dimethylpropyl]quinazolin-4(3H)-one 9 (Q2NH) was prepared in four steps from (S)-tert-leucine in 43% yield without the need for chromatography. The corresponding 3-acetoxyaminoquinazolinone 10 (Q2NHOAc), prepared in dichl
Publikováno v:
Tetrahedron Letters. 39:497-500
The presence of the quinazolin-4(3H)-one ring (Q∗) in N-(Q∗)-aziridines facilitates ring-opening by nucleophiles: removal of the Q∗ group from enantiopure ring-opened products gives useful chirons.
Publikováno v:
Tetrahedron Letters. 38:505-508
Diastereoselective addition of nucleophiles to 1-(RCO)-substituted tricarbony η 4 -cyclohexadiene)iron(0) complexes, and a diastereoselective acid-induced rearrangement to form 1-(branched alkyl)-substituted tricarbonyl( η 5 -cyclohexadienyl)iron(1
Publikováno v:
Tetrahedron Letters. 37:2731-2734
Optimisation of Stille coupling between tricarbonyl[1,2,3,4-η-cyclohexadien-1-yl triflate]iron(0) and tributylvinyltin forms the 1-ethenyl-substituted tricarbonyliron complex in up to 81% yield. Coupling with trimethylsilylethyne in the presence of
Publikováno v:
Tetrahedron Letters. 35:5303-5306
The addition of zinc(II)bromide reverses the diastereoselectivity of the diisobutyl-aluminium hydride (DIBAL-H) reduction of benzylidene sulphinamide R (S) R-(−)- 4 . The same reversal is not observed in the reactions of analogues lacking an amide
Publikováno v:
Tetrahedron Letters. 43:2083-2085
(R)-3-Amino-2-[1-(2-hydroxyethoxy)ethyl]quinazolin-4(3H)-one 10 was prepared in 62% yield without the need for chromatography and O-cinnamoylated; reaction with lead tetra-acetate gave aziridine 12 as a single diastereoisomer in quantitative yield wh