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211 results
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Filters applied: . Clear all Quoted phrase not found in phrase index: "cyclohepta-2,4,6-trien-1-one"
Page 1
Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyl(tropone)iron.
Huang Z, Phelan ZK, Tritt RL, Valent SD, Guan Z, He Y, Weiss PS, Griffith DR. Huang Z, et al. J Vis Exp. 2019 Aug 12;(150). doi: 10.3791/60050. J Vis Exp. 2019. PMID: 31449244
Less nucleophilic aniline derivatives and more hindered secondary amines add efficiently to the cationic tropone complex formed by protonation of tricarbonyl(tropone)iron. ...Following protection of the amine of the aza-Michael adduct as a tert-butyl carbamate, the …
Less nucleophilic aniline derivatives and more hindered secondary amines add efficiently to the cationic tropone complex formed by pr …
[8+2] vs [4+2] Cycloadditions of Cyclohexadienamines to Tropone and Heptafulvenes-Mechanisms and Selectivities.
Chen X, Thøgersen MK, Yang L, Lauridsen RF, Xue XS, Jørgensen KA, Houk KN. Chen X, et al. J Am Chem Soc. 2021 Jan 20;143(2):934-944. doi: 10.1021/jacs.0c10966. Epub 2021 Jan 8. J Am Chem Soc. 2021. PMID: 33416311
The cinchona-alkaloid-catalyzed cycloaddition reactions of 2-cyclohexenone with tropone and various heptafulvenes give [8+2] or [4+2] cycloadducts, depending on the substituents present on the heptafulvene. ...Both tropone and the differe …
The cinchona-alkaloid-catalyzed cycloaddition reactions of 2-cyclohexenone with tropone and various heptafulvenes give [8+2
Organocatalytic Enantioselective 1,3-Dipolar [6+4] Cycloadditions of Tropone.
Bertuzzi G, McLeod D, Mohr LM, Jørgensen KA. Bertuzzi G, et al. Chemistry. 2020 Dec 1;26(67):15491-15496. doi: 10.1002/chem.202003329. Epub 2020 Oct 19. Chemistry. 2020. PMID: 32677710
A highly stereoselective 1,3-dipolar [6+4] cycloaddition towards bridged azabicyclo[4.3.1]decane scaffolds has been developed, reacting aldehydes, 2-aminomalonates and tropone under mild conditions in the presence of a chiral phosp …
A highly stereoselective 1,3-dipolar [6+4] cycloaddition towards bridged azabicyclo[4.3.1]decane scaffold …
Synthetic Entry to the 2-Azatricyclo[4.3.2.04,9]undecane Ring System via Tropone.
Phelan ZK, Weiss PS, He Y, Guan Z, Thamattoor DM, Griffith DR. Phelan ZK, et al. J Org Chem. 2020 Feb 21;85(4):2202-2212. doi: 10.1021/acs.joc.9b02921. Epub 2020 Jan 16. J Org Chem. 2020. PMID: 31904976
A synthesis of the 2-azatricyclo[4.3.2.0(4,9)]undecane ring system-a hitherto unreported bridged azatricyclic ring system-beginning from tricarbonyl(tropone)iron and allylamine was accomplished in three steps: (1) aza-Michael addition of …
A synthesis of the 2-azatricyclo[4.3.2.0(4,9)]undecane ring system-a hitherto unreported bridged azatricyclic ri …
Guaiazulene derivative 1,2,3,4-tetrahydroazuleno[1,2-b] tropone reduces the production of ATP by inhibiting electron transfer complex II.
Kasami C, Yamaguchi JI, Inoue H. Kasami C, et al. FEBS Open Bio. 2021 Nov;11(11):2921-2932. doi: 10.1002/2211-5463.13215. Epub 2021 Sep 21. FEBS Open Bio. 2021. PMID: 34061471 Free PMC article.
Multiple strategies are currently being developed for mitochondrial-targeted cancer therapy, with agents targeting oxidative phosphorylation, glycolysis, the tricarboxylic acid cycle and apoptosis. In this study, we found that one of the guaiazulene derivatives, namely, …
Multiple strategies are currently being developed for mitochondrial-targeted cancer therapy, with agents targeting oxidative phosphorylation …
Synthesis of a Series of Tropone-Fused Porphyrinoids.
Cramer EK, Lash TD. Cramer EK, et al. J Org Chem. 2022 Jan 21;87(2):952-962. doi: 10.1021/acs.joc.1c02063. Epub 2022 Jan 12. J Org Chem. 2022. PMID: 35018780
A series of tropone-fused porphyrinoids with unique spectroscopic features has been prepared. ...Cleavage of the tert-butyl ester protective groups, followed by condensation with a series of aromatic dialdehydes and oxidation with DDQ, afforded the tropone-fused por …
A series of tropone-fused porphyrinoids with unique spectroscopic features has been prepared. ...Cleavage of the tert-butyl ester pro …
Shunting Phenylacetic Acid Catabolism for Tropone Biosynthesis.
Li Y, Wang M, Zhao Q, Shen X, Wang J, Yan Y, Sun X, Yuan Q. Li Y, et al. ACS Synth Biol. 2019 Apr 19;8(4):876-883. doi: 10.1021/acssynbio.9b00013. Epub 2019 Mar 26. ACS Synth Biol. 2019. PMID: 30861343
Then, a single point mutation was introduced to inactivate the ALDH domain of PaaZ and the carbon flow was redirected toward tropone synthesis. Assembly of the full pathway led to de novo tropone production with the best titer of 65.2 1.4 mg/L i …
Then, a single point mutation was introduced to inactivate the ALDH domain of PaaZ and the carbon flow was redirected toward tropone
Rhodium(I)-Catalyzed Three-Component [4+2+1] Cycloaddition of Two Vinylallenes and CO.
Cui Q, Tian ZY, Yu ZX. Cui Q, et al. Chemistry. 2021 Mar 26;27(18):5638-5641. doi: 10.1002/chem.202005443. Epub 2021 Mar 1. Chemistry. 2021. PMID: 33377219
Here, an unexpected three-component [4+2+1] reaction between two vinylallenes and CO was discovered to give highly functionalized tropone derivatives under mild conditions, where one vinylallene acts as a C(4) synthon, the other vinylalle …
Here, an unexpected three-component [4+2+1] reaction between two vinylallenes and CO was discovered to give highly func …
π-Lewis-Base-Catalyzed Asymmetric Vinylogous Umpolung Reactions of Cyclopentadienones and Tropone.
Yang XX, Yan RJ, Ran GY, Chen C, Yue JF, Yan X, Ouyang Q, Du W, Chen YC. Yang XX, et al. Angew Chem Int Ed Engl. 2021 Dec 13;60(51):26762-26768. doi: 10.1002/anie.202111708. Epub 2021 Nov 16. Angew Chem Int Ed Engl. 2021. PMID: 34617655
We disclose that the carbonates of 4-hydroxy-2-cyclopentenones can form pi-allylpalladium-based 1,2-carbodipoles, which isomerize to interesting eta(2) -Pd(0) -cyclopentadienone complexes. ...The vinylogous (aza)Morita-Baylis-Hillman or cross Ra …
We disclose that the carbonates of 4-hydroxy-2-cyclopentenones can form pi-allylpalladium-based 1,2-carbodipoles …
Construction of Fused Tropone Systems Through Intramolecular Rh(I)-Catalyzed Carbonylative [2+2+2+1] Cycloadditon of Triynes.
Teng YG, Chien CW, Chiou WH, Honda T, Ojima I. Teng YG, et al. Front Chem. 2018 Sep 10;6:401. doi: 10.3389/fchem.2018.00401. eCollection 2018. Front Chem. 2018. PMID: 30250840 Free PMC article.
This cyclohepta-2,4,6-trien-1-one skeleton appears simple, but there have been no straightforward ways to construct this molecular architecture. ...The DFT analysis of those two pathways disclosed that the Path A should be the one that yi …
This cyclohepta-2,4,6-trien-1-one skeleton appears simple, but there have been no straightforward ways to …
211 results