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Search results for: robinson annulation

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... Chem. 2010, 4482.) Robinson annulation of 17 with 21. Ying-Chun ... of Sichuan University, again using the Hayashi catalyst, reported (Angew. Chem ...
URL: http://www.organic-chemistry.org/Highlights/2011/15August.shtm
... .) the Jørgensen variation of the Robinson annulation to the amine-substituted ?-keto ester 1 ... The product cis-fused sulfonamide 3, readily brought to high ee by recrystallization, was ...
URL: http://www.organic-chemistry.org/Highlights/2013/25November.shtm
... Cyclohexenones, Organocatalysis, Green Chemistry, Robinson Annulation ID: J42-Y2012-0650 ... Asymmetric Synthesis of Wieland-Miescher and Hajos-Parrish Ketones Catalyzed by an Amino-Acid-Derived Chiral Primary Amine ...
URL: http://www.organic-chemistry.org/abstracts/lit3/560.shtm
... a simple amine that efficiently catalyzed the Robinson annulation of 26 with 27 to give ... . We (J. Org. Chem. 2013, 78, 8437. ...
URL: http://www.organic-chemistry.org/Highlights/2014/11August.shtm
... the enone 5, prepared by asymmetric Robinson annulation, that had already been carried ... to the trans-fused ketone 6. Following their earlier work (J. Org. ...
URL: http://www.organic-chemistry.org/Highlights/2015/06July.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: http://www.organic-chemistry.org/Highlights/2015/07September.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: http://www.organic-chemistry.org/Highlights/2016/02May.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: http://www.organic-chemistry.org/Highlights/2017/06February.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: http://www.organic-chemistry.org/totalsynthesis/totsyn03/fawcettimine-toste.shtm
... ketone 30 can be converted into the Robinson annulation product 32 without epimerization at the ... position. This led to 33, cycloaddition of which with 34 delivered (- ...
URL: http://www.organic-chemistry.org/Highlights/2008/11August.shtm
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