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Page 1
The Claisen condensation in biology.
Heath RJ, Rock CO. Heath RJ, et al. Nat Prod Rep. 2002 Oct;19(5):581-96. doi: 10.1039/b110221b. Nat Prod Rep. 2002. PMID: 12430724 Review.
The mechanism for carbon-carbon bond formation used in the biosynthesis of natural products such as fatty acids and polyketides is a decarboxylating Claisen condensation. The enzymes that catalyze this reaction in various bacterial systems, collectively referred to …
The mechanism for carbon-carbon bond formation used in the biosynthesis of natural products such as fatty acids and polyketides is a decarbo …
New MgFeAl-LDH Catalysts for Claisen-Schmidt Condensation.
Zăvoianu R, Tudorache M, Parvulescu VI, Cojocaru B, Pavel OD. Zăvoianu R, et al. Molecules. 2022 Dec 1;27(23):8391. doi: 10.3390/molecules27238391. Molecules. 2022. PMID: 36500481 Free PMC article.
The catalytic activity of the catalysts in the ClaisenSchmidt condensation between benzaldehyde and cyclohexanone showed a linear dependence to the basicity values. ...The presence of these catalysts in the reaction media inhibited the oxidation of benzaldehyde to benzoic …
The catalytic activity of the catalysts in the ClaisenSchmidt condensation between benzaldehyde and cyclohexanone showed a linear dep …
Claisen Condensation Reaction Mediated Pimelate Biosynthesis via the Reverse Adipate-Degradation Pathway and Its Isoenzymes.
Bao Q, Zhi R, Zhou S, Zhao Y, Mao Y, Li G, Deng Y. Bao Q, et al. Chembiochem. 2022 Jun 3;23(11):e202200098. doi: 10.1002/cbic.202200098. Epub 2022 Apr 11. Chembiochem. 2022. PMID: 35352865
Herein, we found that pimelic acid could be biosynthesized by the reverse adipate-degradation pathway (RADP), a typical Claisen condensation reaction that could be applied to the arrangement of C-C bond. ...It was also the highest titer of pimelic acid biosynthesize …
Herein, we found that pimelic acid could be biosynthesized by the reverse adipate-degradation pathway (RADP), a typical Claisen co …
Non-metal Lewis acid-catalyzed cross-Claisen condensation for beta-keto esters.
Zhang T, Yang Z, Zhou D, Meng F, Han Z, Huang H. Zhang T, et al. Org Biomol Chem. 2021 Nov 3;19(42):9163-9166. doi: 10.1039/d1ob01785c. Org Biomol Chem. 2021. PMID: 34642729
In this work, we disclose a new catalytic and highly chemoselective cross-Claisen condensation of esters. In the presence of TBSNTf(2) as a non-metal Lewis acid, various esters can undergo cross-Claisen condensation to form beta-keto esters which are i …
In this work, we disclose a new catalytic and highly chemoselective cross-Claisen condensation of esters. In the presence of T …
(E)-2-(3,5-Di-meth-oxy-benzyl-idene)indan-1-one.
Encarnacion-Thomas E, Sommer RD, Mallia A, Sloop J. Encarnacion-Thomas E, et al. IUCrdata. 2020 Jun 12;5(Pt 6):x200759. doi: 10.1107/S2414314620007592. eCollection 2020 Jun. IUCrdata. 2020. PMID: 36340617 Free PMC article.
The title chalcone, C(18)H(16)O(3), was prepared by a solventless base-promoted Claisen-Schmidt condensation and, upon recrystallization from ethanol, obtained in 56% yield. ...
The title chalcone, C(18)H(16)O(3), was prepared by a solventless base-promoted Claisen-Schmidt condensation and, upon recryst …
Nickel-Catalyzed Claisen Condensation Reaction between Two Different Amides.
Chen J, Xu M, Yu S, Xia Y, Lee S. Chen J, et al. Org Lett. 2020 Mar 20;22(6):2287-2292. doi: 10.1021/acs.orglett.0c00485. Epub 2020 Mar 4. Org Lett. 2020. PMID: 32129077
A nickel-catalyzed Claisen condensation reaction between two amides, where one possesses an alpha-proton, for the synthesis of beta-ketoamides was developed. ...
A nickel-catalyzed Claisen condensation reaction between two amides, where one possesses an alpha-proton, for the synthesis of …
Indium-catalyzed retro-claisen condensation.
Kawata A, Takata K, Kuninobu Y, Takai K. Kawata A, et al. Angew Chem Int Ed Engl. 2007;46(41):7793-5. doi: 10.1002/anie.200702798. Angew Chem Int Ed Engl. 2007. PMID: 17786902 No abstract available.
Enzymology of standalone elongating ketosynthases.
Chen A, Jiang Z, Burkart MD. Chen A, et al. Chem Sci. 2022 Mar 9;13(15):4225-4238. doi: 10.1039/d1sc07256k. eCollection 2022 Apr 13. Chem Sci. 2022. PMID: 35509474 Free PMC article. Review.
The beta-ketoacyl-acyl carrier protein synthase, or ketosynthase (KS), catalyses carbon-carbon bond formation in fatty acid and polyketide biosynthesis via a decarboxylative Claisen-like condensation. In prokaryotes, standalone elongating KSs interact with the acyl …
The beta-ketoacyl-acyl carrier protein synthase, or ketosynthase (KS), catalyses carbon-carbon bond formation in fatty acid and polyketide b …
A green synthesis approach toward large-scale production of benzalacetone via Claisen-Schmidt condensation.
Sun R, Han C, Xu J. Sun R, et al. RSC Adv. 2022 Oct 13;12(45):29240-29245. doi: 10.1039/d2ra05320a. eCollection 2022 Oct 11. RSC Adv. 2022. PMID: 36320745 Free PMC article.
Claisen-Schmidt (CS) condensation between acetone and benzaldehyde with NaOH as the catalyst is a well-recognized pathway for the synthesis of benzalacetone (BA). ...In this approach, the water-soluble acetone and NaOH were separated from the oil-soluble benzaldehyd …
Claisen-Schmidt (CS) condensation between acetone and benzaldehyde with NaOH as the catalyst is a well-recognized pathway for …
Claisen-Schmidt condensation: Synthesis of (1S,6R)/(1R,6S)-2-oxo-N,4,6-triarylcyclohex-3-enecarboxamide derivatives with different substituents in H(2) O/EtOH.
Mousavi SR. Mousavi SR. Chirality. 2016 Nov;28(11):728-736. doi: 10.1002/chir.22653. Chirality. 2016. PMID: 27791320
A simple, green, and direct three-component condensation of acetophenone, aromatic aldehydes with 3-oxo-N-phenylbutanamide (acetoacetanilide) to generate some novel (1S,6R)/(1R,6S)-2-oxo-N,4,6-triarylcyclohex-3-enecarboxamide derivatives was carried out over K(2) CO(3) (10 …
A simple, green, and direct three-component condensation of acetophenone, aromatic aldehydes with 3-oxo-N-phenylbutanamide (acetoacet …
608 results