Zobrazeno 1 - 10 of 10 pro vyhledávání: '"T M, Peakman"'
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ChemInform Abstract: Regioselective Directed Lithiation of N-Boc-3-hydroxypyrrolidine. Synthesis of 2-Substituted 4-Hydroxypyrrolidines
Autor: T. M. Peakman, Jonathan P. H. Charmant, Simon J. F. Macdonald, Timothy Gallagher, Sunose Mihiro
Publikováno v: ChemInform. 29
N-Boc 3-hydroxypyrrolidine 1 undergoes directed C-lithiation at C5 and not, as previously reported, at C2; the resulting dilithiated intermediate 6 has been trapped by a range of electrophiles to give 2-substituted 4-hydroxypyrrolidines 7.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::867e69a14618508397a2af115aa9497d
https://doi.org/10.1002/chin.199847126
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2
New Triterpenes from the Frond Exudate of the Fern Notholaena rigida
Autor: J. Rullkötter, Eckhard Wollenweber, F. J. Arriaga-Giner, T. M. Peakman
Publikováno v: Zeitschrift für Naturforschung C. 46:507-512
Two new triterpenoids, isolated from the frond exudate of the fern Notholaena rigida, have been identified as 3 β, 12 β,25-trihydroxy-(20 R-24 R)-epoxy-dammarane- 12-acetate (1), and 24 R,25-diO-isopropyliden-9(19)-cyclolanostan-3 β-ol (5), based
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d21b8fdbea1198a5a01428ca2a835bd2
https://doi.org/10.1515/znc-1991-7-801
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3
Entropy-driven hydrogen bonding: stereodynamics of a protonated, N,N-chiral 'proton sponge'
Autor: P, Hodgson, G C, Lloyd-Jones, M, Murray, T M, Peakman, R L, Woodward
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 6(24)
The C2-symmetric ("[DL]") and achiral ("[meso]") diastereoisomers of the hydrogen iodide salt of 1,8-bis-(N-benzyl-N-methylamino)naphthalene ([2H]-[I] ) interconvert in solution. Direct interconversion of the diastereoisomers of [2H]+ must involve hy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6c1e9961b2b49d0ffdf37bd4c6866ea8
https://pubmed.ncbi.nlm.nih.gov/11192077
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4
Long-chain alkenes of the haptophytes Isochrysis galbana and Emiliania huxleyi
Autor: G, Rieley, M A, Teece, T M, Peakman, A M, Raven, K J, Greene, T P, Clarke, M, Murray, J W, Leftley, C, Campbell, R P, Harris, R J, Parkes, J R, Maxwell, C N, Campbell
Publikováno v: Lipids. 33(6)
The major alkenes of the haptophytes Isochrysis galbana (strain CCAP 927/14) and Emiliania huxleyi (strains CCAP 920/2 and VAN 556) have been identified by nuclear magnetic resonance spectroscopy and by mass spectrometric analysis of their dimethyl d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d9be11610e0841f6cc28764b6e4166c
https://pubmed.ncbi.nlm.nih.gov/9655378
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9
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