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Search results for: claisen condensation

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The Reisman Synthesis of (+)-Salvileucalin B
... but rather 12, the product of Claisen rearrangement . Reasoning that the Claisen rearrangement ... by the Arndt-Eistert procedure , then by condensation of the methyl ester so prepared with ...
URL: https://www.organic-chemistry.org/Highlights/2012/02January.shtm
The Carreira Synthesis of (+)-Daphmanidin E
... atoms of 3 were added by sequential Claisen rearrangements . O-Alkylation with 7 delivered 8 ... to the aldehyde 12, that was condensed with nitromethane to give 13. Direct ...
URL: https://www.organic-chemistry.org/Highlights/2012/03September.shtm
Total Synthesis of Fusicoauritone by Williams
... synthesis of that beast begins with a Johnson-Claisen ortho-ester rearrangement, used again a few ... was then formed via a modified Julia condensation . This reaction is closely related to ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn02/fusicoauritone-williams.shtm
Enantioselective Synthesis of C-N Ring Containing Natural Products
... . On deprotonation followed by silylation, Ireland-Claisen rearrangement proceeded with high diastereocontrol. The ... of the University of Iowa of the condensation of 1 with 2, followed by ...
URL: https://www.organic-chemistry.org/Highlights/2007/08January.shtm
Enantioselective Construction of Arrays of Stereogenic Centers
... the terminal alkene to give, after Claisen rearrangement , the aldehyde 24. D ... that organocatalysts can effect smooth anti-selective Mannich condensation of imines such as 8 with aldehydes ...
URL: https://www.organic-chemistry.org/Highlights/2007/26February.shtm
Artochamins, Reduction of Nitro Compounds, Polysubstituted Imidazo[1,2-?]pyridines, Carbon-Linked Glycosyl Amino Acids
... . The cascade reaction incorporated two consecutive Claisen rearrangements , collapsing of the Boc groups ... pyridylalanines was accomplished by a Hantzsch-type three-component cyclocondensation of C-glucosyl or C-galactosyl acetaldehydes (1 ...
URL: https://www.organic-chemistry.org/Highlights/2007/15OctoberB.shtm
The Fukuyama Synthesis of (-)-Lepenine
... led to the secondary allylic alcohol. Claisen rearrangement with triethyl orthoacetate delivered not the ... 10.1021/ja503023h) an intramolecular Mannich condensation , the conversion of 1 to 2 ...
URL: https://www.organic-chemistry.org/Highlights/2014/01December.shtm
Arrays of Stereogenic Centers: The Yadav Synthesis of Nhatrangin A
... . DOI: 10.1021/ja408856p) Claisen rearrangement of 23 to give, after ... Motomu Kanai of the University of Tokyo condensed (Org. Lett. 2013, ...
URL: https://www.organic-chemistry.org/Highlights/2014/28July.shtm
C-C Bond Construction: The Zhu Synthesis of Goniomitine
... to give 9, the product of Claisen rearrangement . Tsuyoshi Satoh of the Tokyo ... the Shenzen Graduate School of Peking University condensed (J . Am. Chem. ...
URL: https://www.organic-chemistry.org/Highlights/2014/10March.shtm
Total Synthesis of Quinine by Woodward, Williams
... and after protecting group transformation, a Claisen condensation followed by decarboxylation was used to ... the quinoline moiety, completing the formal synthesis. For sure! Some thanks to ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn04/quinine-woodward-williams.shtm
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