Results 311 to 320 of about 12,937,378 (338)
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Asymmetric Total Synthesis of Cyclocitrinol.
Journal of the American Chemical Society, 2018The first and asymmetric total synthesis of cyclocitrinol, an unusual C25 steroid, has been accomplished in a linear sequence of 18 steps from commercially available compound 11.
Junyang Liu +5 more
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Gold catalysis in total synthesis - recent achievements.
Chemical Society Reviews, 2016In this critical review the applications of gold catalysed reactions in total synthesis during the years since our last article are reviewed. At the end of this article a literature analysis is conducted to evaluate the progress in this field.
Daniel Pflästerer, A. Hashmi
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Total Synthesis of (−)-Uniflorine A
Journal of Natural Products, 2009Total synthesis of (-)-uniflorine A (3) has been accomplished in nine steps and 11% overall yield from carbohydrate-based nitrone 5. The key steps of the synthetic strategy were a high regio- and complete stereoselective 1,3-dipolar cycloaddition of alkene 6 with nitrone 5, a Tamao-Fleming reaction for replacing the silicon substituent with a hydroxy ...
PARMEGGIANI, CAMILLA +3 more
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Methods Utilizing First-Row Transition Metals in Natural Product Total Synthesis.
Chemical Reviews, 2017First-row transition-metal-mediated reactions constitute an important and growing area of research due to the low cost, low toxicity, and exceptional synthetic versatility of these metals.
J. Zweig +2 more
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Total Synthesis of (+)‐Phyllantidine [PDF]
Angewandte Chemie International Edition, 2006 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cheryl A. Carson, Michael A. Kerr
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Total Synthesis of Rubriflordilactone B.
Angewandte Chemie, 2016Taking advantage of a 6π electrocyclization-aromatization strategy, we accomplished the first and asymmetric total synthesis of rubriflordilactone B, a heptacyclic Schisandraceae bisnortriterpenoid featuring a tetrasubstituted arene moiety. The left-hand
Peng Yang +4 more
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Total Synthesis of Longeracinphyllin A.
Journal of the American Chemical Society, 2017The first and asymmetric total synthesis of longeracinphyllin A, a hexacyclic Daphniphyllum alkaloid, has been accomplished. A tetracyclic intermediate was prepared through silver-catalyzed alkyne cyclization and Luche radical cyclization.
Jian Li +4 more
semanticscholar +1 more source
Tetrahedron Letters, 1968
The diazotisation of 6,7-dimethoxy- and 7-ethoxy-6-methoxy-1-(2-amino-4,5-methylenedioxybenzyl)-1,2,3,4-tetrahydro-2-methylisoquinoline (XII) and (XV), followed by thermal decomposition, gave amurine (Ib), as a result of which Dopke's structure for the alkaloid was proved to be correct.
Keiichiro Fukumoto +2 more
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The diazotisation of 6,7-dimethoxy- and 7-ethoxy-6-methoxy-1-(2-amino-4,5-methylenedioxybenzyl)-1,2,3,4-tetrahydro-2-methylisoquinoline (XII) and (XV), followed by thermal decomposition, gave amurine (Ib), as a result of which Dopke's structure for the alkaloid was proved to be correct.
Keiichiro Fukumoto +2 more
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Angewandte Chemie, 2017
A ligand-promoted catalytic [4+2] annulation reaction using indole derivatives and donor-acceptor (D-A) cyclobutanes is reported, thus providing an efficient and atom-economical access to versatile cyclohexa-fused indolines with excellent levels of ...
Liang-Wen Feng +5 more
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A ligand-promoted catalytic [4+2] annulation reaction using indole derivatives and donor-acceptor (D-A) cyclobutanes is reported, thus providing an efficient and atom-economical access to versatile cyclohexa-fused indolines with excellent levels of ...
Liang-Wen Feng +5 more
semanticscholar +1 more source
Total Synthesis of (.+‐.)‐Quadrangularin A.
ChemInform, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Zijie Hou, Wenling Li, Hao Li, Ying Li
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