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Search results for: aldol condensation

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... a chiral Brønsted acid can accomplish an aldol addition-dehydration-conjugate reduction-reductive amination with 2,6-diketones ... examples proposed reaction pathway Key Words aldol condensation, reductive amination, organocatalysis, Hantzsch ...
URL: https://www.organic-chemistry.org/abstracts/lit1/742.shtm
... 2007, 736.) the now-classic aldol condensation of cyclohexanone to 4-substituted cyclohexanones such ... chiral amine 17, that catalyzed the condensation of an aldehyde with ethyl glyoxylate 16 ...
URL: https://www.organic-chemistry.org/Highlights/2008/10March.shtm
... observation that the catalyst 18 directs the aldol condensation (Morita-Baylis-Hillman reaction) of cyclohexenone ... Enders of RWTH Aachen, involves the condensation of an aldehyde, an ?, ...
URL: https://www.organic-chemistry.org/Highlights/2007/20August.shtm
... to the dialdehyde 19 followed by intramolecular aldol condensation completed the assembly of 2. ... The preparation of 2 began with the condensation of the prochiral 13 with Meldrum ' ...
URL: https://www.organic-chemistry.org/Highlights/2016/04January.shtm
... after protection, the lactone 13. Aldol condensation with 14 followed by protection gave ... 8. Esterification of 8 followed by condensation with triethyl orthoformate then gave 9. ...
URL: https://www.organic-chemistry.org/Highlights/2016/05September.shtm
... In addition to ketone enolate alkylation and aldol condensation/dehydration there is a third ... , as illustrated (Org. Biomol. Chem. 2016, 14, 131 ...
URL: https://www.organic-chemistry.org/Highlights/2017/09January.shtm
... to both the Julia olefination and the aldol condensation, and worked rather well. ... 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
... and a very nice demonstration of the BDA-aldol methodology. The overall strategy is also ... this with base then induces a Dieckmann condensation type cyclisation to deliver the desired macrocycle ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn02/rapamycin-ley.shtm
... G ring was installed via an intramolecular aldol reaction, with the key quaternary stereocenter ... after Swern oxidation performed a regioselective aldol condensation to give the desired G-ring. For ...
URL: https://www.organic-chemistry.org/totalsynthesis/totsyn04/pinnatoxin-a-zakarian.shtm
... 13 was prepared by chiral auxiliary directed aldol condensation. Combination of 12 with 13 ... followed by Au-mediated cyclization, converting the internal alkyne of 14 to the spiroketal of ...
URL: https://www.organic-chemistry.org/Highlights/2009/07September.shtm
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