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Search results for: robinson annulation

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... . The optimized catalyst for the enantioselective Robinson annulation was the amide 5. With ... mol % of the catalyst, the reaction proceeded in 97% ee. With ...
URL: https://www.organic-chemistry.org/Highlights/2011/07March.shtm
... , available in enantiomerically-pure form by organocatalyzed Robinson annulation . Condensation with thiophenol and formaldehyde ... 6, which under dissolving metal conditions was reduced to an enolate that was trapped ...
URL: https://www.organic-chemistry.org/Highlights/2015/07September.shtm
... 11. Following the literature procdure, Robinson annulation of the prochiral 5 with the ... 6 delivered 7 in 93% ee, brought to 99% ee by crystallization ...
URL: https://www.organic-chemistry.org/Highlights/2017/06February.shtm
... Chem. 2010, 4482. ) Robinson annulation of 17 with 21. Ying-Chun ... of Sichuan University, again using the Hayashi catalyst, reported (Angew. Chem ...
URL: https://www.organic-chemistry.org/Highlights/2011/15August.shtm
... similarly simple catalyst system, that effected Robinson annulation of 18 to 20. Binding ... organocatalyst to a polymer simplifies recovery and reuse. Tore Hansen of the University of ...
URL: https://www.organic-chemistry.org/Highlights/2010/20December.shtm
... a simple amine that efficiently catalyzed the Robinson annulation of 26 with 27 to give ... . We (J . Org. Chem. 2013, 78, 8437. ...
URL: https://www.organic-chemistry.org/Highlights/2014/11August.shtm
... cis 6/5 ring fusion. Robinson annulation converted 2 into 11, that ... methylated to give 12. Reduction of 12 and selective epoxidation led to 13. ...
URL: https://www.organic-chemistry.org/Highlights/2016/02May.shtm
... material was made using a neat organocatalytic Robinson annulation , which they state was efficient ... on a ten-gram scale. Good stuff. The rest of the synthesis used more ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn03/fawcettimine-toste.shtm
... and set them up for a nice Robinson Annulation with the cycloheptanone. Given that ... are a couple of modes of reaction for this compound, a yield in the ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn06/englerin-a-nicolaou-chen.shtm
... Hayashi catalyst functioned well for the enantioselective Robinson annulation of 23 with 22. D ... F. Taber, Org. Chem. Highlights 2011, October 10. URL ...
URL: https://www.organic-chemistry.org/Highlights/2011/10October.shtm
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