Results 271 to 280 of about 121,575 (333)
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Intramolecular alkyne–alkyne and alkyne–alkene couplings promoted by iron carbonyls
J. Chem. Soc., Chem. Commun., 1991The first examples of iron carbonyl-promoted intramolecular coupling of alkyne and alkene, giving rise to cyclopentenones, are described.
Anthony J. Pearson, Robert A. Dubbert
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ChemInform, 1991
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. J. PEARSON, R. A. DUBBERT
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. J. PEARSON, R. A. DUBBERT
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1996
This chapter focuses on the differences between alkynes and alkenes, particularly those that affect synthetic work. It explains that one difference concerns the CC double bond, which is usually created from saturated intermediates by elimination but is formed in a different way in alkynes.
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This chapter focuses on the differences between alkynes and alkenes, particularly those that affect synthetic work. It explains that one difference concerns the CC double bond, which is usually created from saturated intermediates by elimination but is formed in a different way in alkynes.
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2003
Tremendous advances in the field of alkyne metathesis have been recorded over the last decade. The development of molybdenum alkylidyne complexes endowed with silanolate ligands allowed several problems of traditional alkyne metathesis to be solved at once.
R. Poli, K. M. Smith
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Tremendous advances in the field of alkyne metathesis have been recorded over the last decade. The development of molybdenum alkylidyne complexes endowed with silanolate ligands allowed several problems of traditional alkyne metathesis to be solved at once.
R. Poli, K. M. Smith
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Rh(III)-Catalyzed meta-C-H Alkenylation with Alkynes.
Journal of the American Chemical Society, 2018Rh(III)-catalyzed meta-C-H functionalization reactions are still rare. Herein, we report the first example of Rh(III)-catalyzed meta-C-H alkenylation with disubstituted alkynes directed by a U-shaped nitrile template. Exclusive regio-selectivity has been
Hua-Jin Xu +10 more
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Z-Selective Addition of Diaryl Phosphine Oxides to Alkynes via Photoredox Catalysis
ACS Catalysis, 2018Radical addition to alkynes is known to predominantly yield thermodynamically more stable E-alkenes. Control of stereoselectivity in these reactions, and the isolation of the higher-energy Z-alkenes, remain an important challenge in chemical synthesis ...
Huamin Wang +7 more
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Journal of Organic Chemistry, 2002
C. Tornøe, C. Christensen, M. Meldal
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C. Tornøe, C. Christensen, M. Meldal
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An Example of Alkyne-Alkyne Interaction
Journal of the American Chemical Society, 1966H W, Whitlock, P E, Sandvick
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