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Deng, Youqian
Publications (7 of 7) Show all publications
Bartholomeyzik, T., Mazuela, J., Pendrill, R., Deng, Y. & Bäckvall, J.-E. (2014). Palladium-Catalyzed Oxidative Arylating Carbocyclization of Allenynes: Control of Selectivity and Role of H2O. Angewandte Chemie International Edition, 53(33), 8696-8699
Open this publication in new window or tab >>Palladium-Catalyzed Oxidative Arylating Carbocyclization of Allenynes: Control of Selectivity and Role of H2O
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2014 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 53, no 33, p. 8696-8699Article in journal (Refereed) Published
Abstract [en]

Highly selective protocols for the carbocyclization/arylation of allenynes using arylboronic acids are reported. Arylated vinylallenes are obtained with the use of BF3 center dot Et2O as an additive, whereas addition of water leads to arylated trienes. These conditions provide the respective products with excellent selectivities (generally > 97:3) for a range of boronic acids and different allenynes. It has been revealed that water plays a crucial role for the product distribution.

Place, publisher, year, edition, pages
Weinheim: Wiley-VCH Verlag GmbH & Co. KGaA, 2014
Keywords
allenes, boronic acids, cyclization, oxidation, palladium
National Category
Chemical Sciences Organic Chemistry
Identifiers
urn:nbn:se:su:diva-107580 (URN)10.1002/anie.201404264 (DOI)000340523500025 ()
Funder
Knut and Alice Wallenberg FoundationEU, European Research CouncilSwedish Research CouncilBerzelii Centre EXSELENTWenner-Gren Foundations
Note

AuthorCount:5;

Available from: 2014-09-21 Created: 2014-09-20 Last updated: 2022-02-23Bibliographically approved
Chen, H., Deng, Y., Yu, Z., Zhao, H., Yao, Q., Zou, X., . . . Sun, J. (2013). 3D Open-Framework Vanadoborate as a Highly Effective Heterogeneous Pre-catalyst for the Oxidation of Alkylbenzenes. Chemistry of Materials, 25(24), 5031-5036
Open this publication in new window or tab >>3D Open-Framework Vanadoborate as a Highly Effective Heterogeneous Pre-catalyst for the Oxidation of Alkylbenzenes
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2013 (English)In: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 25, no 24, p. 5031-5036Article in journal (Refereed) Published
Abstract [en]

Three three-dimensional (3D) open-framework vanadoborates, denoted as SUT-6-Zn, SUT-6-Mn, and SUT-6-Ni, were synthesized using diethylenetriamine as a template. SUT-6-Zn, SUT-6-Mn, and SUT-6-Ni are isostructural and built from (VO)(12)O-6 B18O36(OH)(6) clusters bridged by ZnO5, MnO6, and NiO6 polyhedra, respectively, to form the 3D frameworks. SUT-6 is the first vanadoborate with a 3D framework. The framework follows a semiregular hxg net topology with a 2-fold interpenetrated diamond-like channel system. The amount of template used in the synthesis played an important role in the dimensionality of the resulting vanadoborate structures. A small amount of diethylenetriamine led to the formation of this first 3D vanadoborate framework, while an increased amount of diethylenetriamine resulted in vanadoborates with zero-dimensional (0D) and one-dimensional (1D) structures. SUT-6-Zn was proved to be an efficient heterogeneous precatalyst for the oxidation of alkylbenzenes.

Keywords
vanadoborates, open-framework materials, hxg topology, heterogeneous catalysis, oxidation
National Category
Physical Chemistry Materials Chemistry
Identifiers
urn:nbn:se:su:diva-100387 (URN)10.1021/cm401400m (DOI)000329137800024 ()
Funder
Swedish Research CouncilVinnova
Note

AuthorCount:8;

Funding agencies:

Swedish Research Council (VR)   Swedish Governmental Agency for Innovation Systems (VINNOVA) through Berzelii EXSELENT;   National Basic Research Program of China  2013CB933402; Diamond Light Source I19.

Available from: 2014-02-04 Created: 2014-02-03 Last updated: 2022-02-24Bibliographically approved
Deng, Y., Teresa, B. & Bäckvall, J.-E. (2013). Control of Selectivity in Palladium-Catalyzed Oxidative Carbocyclization/Borylation of Allenynes. Angewandte Chemie International Edition, 52(24), 6283-6287
Open this publication in new window or tab >>Control of Selectivity in Palladium-Catalyzed Oxidative Carbocyclization/Borylation of Allenynes
2013 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 52, no 24, p. 6283-6287Article in journal (Refereed) Published
Abstract [en]

In control: A highly selective carbocyclization/borylation of allenynes with bis(pinacolato)diboron (B2pin2) under palladium catalysis and with p-benzoquinone (BQ) as the oxidant was developed. The use of either LiOAc⋅2 H2O with 1,2-dichloroethane (DCE) as the solvent or BF3⋅Et2O together with THF is crucial for the selective formation of borylated trienes and vinylallenes, respectively.

Keywords
allenes, boronates, cyclization, oxidation, palladium
National Category
Chemical Sciences
Identifiers
urn:nbn:se:su:diva-90111 (URN)10.1002/anie.201301167 (DOI)000320375800028 ()
Funder
EU, European Research Council, 247014Swedish Research CouncilKnut and Alice Wallenberg FoundationWenner-Gren FoundationsBerzelii Centre EXSELENT
Note

AuthorCount: 3;

Available from: 2013-05-23 Created: 2013-05-23 Last updated: 2022-03-23Bibliographically approved
Liu, L., Yu, Z.-B., Chen, H., Deng, Y., Lee, B.-L. & Sun, J. (2013). Disorder in Extra-Large Pore Zeolite ITQ-33 Revealed by Single Crystal XRD. Crystal Growth & Design, 13(10), 4168-4171
Open this publication in new window or tab >>Disorder in Extra-Large Pore Zeolite ITQ-33 Revealed by Single Crystal XRD
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2013 (English)In: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 13, no 10, p. 4168-4171Article in journal (Refereed) Published
Abstract [en]

The single crystal of the extra-large pore zeolite, ITQ-33, was obtained and used to explore its crystal structure details. The ITQ-33 structure was found to be disordered with the columnar periodic building unit, explaining the morphology changes upon the different Si/Ge ratio, and the formation of the hierarchical structure from assembling of ITQ-33 nanofibers.

National Category
Organic Chemistry Inorganic Chemistry
Identifiers
urn:nbn:se:su:diva-97039 (URN)10.1021/cg400880a (DOI)000326300200005 ()
Funder
Swedish Research CouncilVinnovaKnut and Alice Wallenberg Foundation
Note

AuthorCount:6;

Available from: 2013-12-03 Created: 2013-12-02 Last updated: 2022-02-24Bibliographically approved
Deng, Y. & Bäckvall, J.-E. (2013). Palladium-Catalyzed Oxidative Acyloxylation/Carbocyclization of Allenynes. Angewandte Chemie International Edition, 52(11), 3217-3221
Open this publication in new window or tab >>Palladium-Catalyzed Oxidative Acyloxylation/Carbocyclization of Allenynes
2013 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 52, no 11, p. 3217-3221Article in journal (Refereed) Published
Keywords
allenynes, carboxylic acids, cyclization, oxidation, palladium
National Category
Organic Chemistry
Identifiers
urn:nbn:se:su:diva-89579 (URN)10.1002/anie.201208718 (DOI)000316340700029 ()
Funder
EU, European Research CouncilSwedish Research CouncilBerzelii Centre EXSELENTKnut and Alice Wallenberg FoundationWenner-Gren Foundations
Note

AuthorCount:2;

Available from: 2013-04-29 Created: 2013-04-29 Last updated: 2022-03-10Bibliographically approved
Deng, Y., Bartholomeyzik, T., Persson, A. K. A., Sun, J. & Bäckvall, J.-E. (2012). Palladium-Catalyzed Oxidative Arylating Carbocyclization of Allenynes. Angewandte Chemie International Edition, 51(11), 2703-2707
Open this publication in new window or tab >>Palladium-Catalyzed Oxidative Arylating Carbocyclization of Allenynes
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2012 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 51, no 11, p. 2703-2707Article in journal (Refereed) Published
Keywords
alkynes, allenes, cyclization, oxidation, palladium
National Category
Organic Chemistry
Identifiers
urn:nbn:se:su:diva-78438 (URN)10.1002/anie.201107592 (DOI)000301173800031 ()
Funder
Swedish Research Council
Note

5

Available from: 2012-07-05 Created: 2012-07-04 Last updated: 2022-02-24Bibliographically approved
Deng, Y., Persson, A. K. A. & Bäckvall, J.-E. (2012). Palladium-Catalyzed Oxidative Carbocyclizations. Chemistry - A European Journal, 18(37), 11498-11523
Open this publication in new window or tab >>Palladium-Catalyzed Oxidative Carbocyclizations
2012 (English)In: Chemistry - A European Journal, ISSN 0947-6539, E-ISSN 1521-3765, Vol. 18, no 37, p. 11498-11523Article, review/survey (Refereed) Published
Abstract [en]

Palladium-catalyzed oxidative carboncarbon bond-forming annulations, that is, carbocyclization reactions, have recently emerged as efficient and atom-economical routes to carbo- and heterocycles, whereby less functionalized substrates and fewer synthetic steps are needed to obtain a target molecule compared with traditional non-oxidative carboncarbon bond-forming reactions. In this review, the synthetic efforts in palladium-catalyzed oxidative carbocyclization reactions are summarized.

Keywords
carbocyclization, C-C bond formation, homogeneous catalysis, oxidation, palladium
National Category
Chemical Sciences
Identifiers
urn:nbn:se:su:diva-86235 (URN)10.1002/chem.201201494 (DOI)000308313100001 ()
Funder
Swedish Research Council
Available from: 2013-01-11 Created: 2013-01-11 Last updated: 2022-02-24Bibliographically approved
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