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Papers by John Leonard
Organosulfur Chemistry, 1998
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Tetrahedron Letters, 1978
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Journal of the Chemical Society, Perkin Transactions 1, 1992
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Journal of the Chemical Society, Chemical Communications, 1993
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Tetrahedron: Asymmetry, 2004
... We also repeated the reaction with 2-furaldehyde carried out by Schwartz and Yates using sec-... more ... We also repeated the reaction with 2-furaldehyde carried out by Schwartz and Yates using sec-BuLi/(−)-sparteine instead of n-BuLi/TMEDA (Scheme 4). We obtained adduct 14 in a 90% overall yield as an approximately 1:1 mixture of diastereomers. ...
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Tetrahedron Letters, 1987
The iridoid insect antifeedant specionin has been synthesised from endo-cis-bicyclo[3.3.0]oct -7-... more The iridoid insect antifeedant specionin has been synthesised from endo-cis-bicyclo[3.3.0]oct -7-en-2-ol. When the bis acetal ring is cyclised at a late stage the correct stereochemistry is generated selectively. ... Specionin 2 has been synthesised from 4. Acid catalysed cyclisation of the ...
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Tetrahedron Letters, 1977
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Tetrahedron Letters, 1990
... Chem. Soc., (1984) 106, 5754 7. We thank Dr. RT Brown for a comparison sample and spectra of ... more ... Chem. Soc., (1984) 106, 5754 7. We thank Dr. RT Brown for a comparison sample and spectra of methyl elenolate. 8. a)RTBrown, CL Chapple, DM Duckworlh and R. Plait, J. Chem. Soc. ... We thank Dr. RT Brown for a comparison sample and spectra of methyl elenolate. ...
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Tetrahedron Letters, 1994
... 94 6.00+0.00 A Short Synthesis of Apoyohimbines via a Sulfolene Based Intramolecular DielsAld... more ... 94 6.00+0.00 A Short Synthesis of Apoyohimbines via a Sulfolene Based Intramolecular DielsAlder Reaction John Leonard,* Diana Appleton and ... 3303; e) SF Martin, T. Rein, Y. Liao, Tetrahedron Lelt.. ... 6. J. Leonard, SP Peamley and DMB Hickey, Synletf, 1992, 272 7. TS Chou. ...
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Tetrahedron Letters, 1990
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Tetrahedron, 1995
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Tetrahedron, 1987
... Shirley K. Hendrie and John Leonard ... Infra red spectra were recorded on a Peiktn Elmer 397... more ... Shirley K. Hendrie and John Leonard ... Infra red spectra were recorded on a Peiktn Elmer 397 spectrometer and NMR spectra were measured at 60 MHz on a Varian EM 360 Instrument, at 90 MHz on a Peikki Elmer R32 instrument, at 300 MHz on a Broker AC 300 Instalment or at ...
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Synthetic Communications, 1989
Practical, high yielding procedures are described whereby useful chiral enones and enoates can be... more Practical, high yielding procedures are described whereby useful chiral enones and enoates can be prepared from either (R)- or (S)-glyceraldekyde acetonide. The labile aldehydes, formed from their precursors by lead tetraacetate cleavage, we reacted with stabilized Wittig reagents in situ.
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Synlett, 2010
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Synlett, 1992
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Synlett, 1990
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Natural Product Reports, 1999
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Journal of the American Chemical Society, 1992
RefDoc Bienvenue - Welcome. Refdoc est un service / is powered by. ...
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European Journal of Pharmacology, 2007
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European Journal of Organic Chemistry, 1998
ABSTRACT
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Organosulfur Chemistry, 1998
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Tetrahedron Letters, 1978
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Journal of the Chemical Society, Perkin Transactions 1, 1992
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Journal of the Chemical Society, Chemical Communications, 1993
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Tetrahedron: Asymmetry, 2004
... We also repeated the reaction with 2-furaldehyde carried out by Schwartz and Yates using sec-... more ... We also repeated the reaction with 2-furaldehyde carried out by Schwartz and Yates using sec-BuLi/(−)-sparteine instead of n-BuLi/TMEDA (Scheme 4). We obtained adduct 14 in a 90% overall yield as an approximately 1:1 mixture of diastereomers. ...
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Tetrahedron Letters, 1987
The iridoid insect antifeedant specionin has been synthesised from endo-cis-bicyclo[3.3.0]oct -7-... more The iridoid insect antifeedant specionin has been synthesised from endo-cis-bicyclo[3.3.0]oct -7-en-2-ol. When the bis acetal ring is cyclised at a late stage the correct stereochemistry is generated selectively. ... Specionin 2 has been synthesised from 4. Acid catalysed cyclisation of the ...
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Tetrahedron Letters, 1977
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Tetrahedron Letters, 1990
... Chem. Soc., (1984) 106, 5754 7. We thank Dr. RT Brown for a comparison sample and spectra of ... more ... Chem. Soc., (1984) 106, 5754 7. We thank Dr. RT Brown for a comparison sample and spectra of methyl elenolate. 8. a)RTBrown, CL Chapple, DM Duckworlh and R. Plait, J. Chem. Soc. ... We thank Dr. RT Brown for a comparison sample and spectra of methyl elenolate. ...
Bookmarks Related papers MentionsView impact
Tetrahedron Letters, 1994
... 94 6.00+0.00 A Short Synthesis of Apoyohimbines via a Sulfolene Based Intramolecular DielsAld... more ... 94 6.00+0.00 A Short Synthesis of Apoyohimbines via a Sulfolene Based Intramolecular DielsAlder Reaction John Leonard,* Diana Appleton and ... 3303; e) SF Martin, T. Rein, Y. Liao, Tetrahedron Lelt.. ... 6. J. Leonard, SP Peamley and DMB Hickey, Synletf, 1992, 272 7. TS Chou. ...
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Tetrahedron Letters, 1990
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Tetrahedron, 1995
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Tetrahedron, 1987
... Shirley K. Hendrie and John Leonard ... Infra red spectra were recorded on a Peiktn Elmer 397... more ... Shirley K. Hendrie and John Leonard ... Infra red spectra were recorded on a Peiktn Elmer 397 spectrometer and NMR spectra were measured at 60 MHz on a Varian EM 360 Instrument, at 90 MHz on a Peikki Elmer R32 instrument, at 300 MHz on a Broker AC 300 Instalment or at ...
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Synthetic Communications, 1989
Practical, high yielding procedures are described whereby useful chiral enones and enoates can be... more Practical, high yielding procedures are described whereby useful chiral enones and enoates can be prepared from either (R)- or (S)-glyceraldekyde acetonide. The labile aldehydes, formed from their precursors by lead tetraacetate cleavage, we reacted with stabilized Wittig reagents in situ.
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Synlett, 2010
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Synlett, 1992
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Synlett, 1990
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Natural Product Reports, 1999
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Journal of the American Chemical Society, 1992
RefDoc Bienvenue - Welcome. Refdoc est un service / is powered by. ...
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European Journal of Pharmacology, 2007
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European Journal of Organic Chemistry, 1998
ABSTRACT
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