Brian L. Pagenkopf

Western University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Ming Yu

Meizhou City People's Hospital

Nicholas A. Morra

Western University

John F. Reichwein

Star Technology and Research (United States)

Hongda Zhao

Jiangsu University of Science and Technology

Naresh Vemula

Western University

Barbora Bajtos

University West

Andrew C. Stevens

Allina Health

Andrew J. Boydston

University of Wisconsin–Madison

Scott T. Iacono

United States Air Force Academy

Mahmoud M. Abd Rabo Moustafa

Al-Azhar University

Cooperative Institutions

Western University

University West

The University of Texas at Austin

Chinese Academy of Sciences

Montana State University

Transnational Press London

The University of Texas Southwestern Medical Center

Peking University

Dalian University of Technology

University of Science and Technology of China

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

A General Asymmetric Aldol Reaction of Silyl Ketene Acetals Derived from Simple Esters to Aryl α‐Keto Esters

European Journal of Organic Chemistry (2009)

Julie L. Engers Brian L. Pagenkopf

Abstract A general method for the enantioselective addition of O , O ‐ketene silyl acetals made from simple esters to α‐keto esters catalyzed by a CuCl 2 · bis(oxazoline) complex is reported that overcomes the limitations of the classic aldol reaction, such as steric intolerance and the need for expensive thio esters. This method excels with aryl α‐keto esters and provides products in good yield and high ee that are not readily available by alternative strategies. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

Oxazoline

Aldol reaction

Thio-

10.1002/ejoc.200901086

Cite

Citations (17)

CCDC 837762: Experimental Crystal Structure Determination

The Cambridge Structural Database (2011)

A.C. Stevens C. Palmer Brian L. Pagenkopf

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccx3rlb

Cite

Citations (0)

Improving Quantum Efficiencies of Siloles and Silole‐Derived Butadiene Chromophores through Structural Tuning

Angewandte Chemie (2004)

Andrew J. Boydston Brian L. Pagenkopf

Eine hellere Zukunft für Silole: Lumineszierende Silolchromophore mit den höchsten Quanteneffizienzen für vollständig substituierte monomere Silole entstehen durch Variation der sterischen Eigenschaften der Substituenten. Behandelt man die 1,1-Dimethylsilole bei Raumtemperatur mit Bu4NF (TBAF) in THF, werden sie schnell und stereospezifisch desilyliert (siehe Schema). Dünne Filme der Silolfluorophore zeigen eine intensive Festkörperphotolumineszenz. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2001/2004/z461844_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Chromophore

Schema (genetic algorithms)

Quantum chemical

10.1002/ange.200461844

Cite

Citations (19)

Selective Oxidation of Zirconocyclopentenes via Organoboranes.

ChemInform (2004)

Jeffrey S. T. Gorman Scott T. Iacono Brian L. Pagenkopf

Abstract For Abstract see ChemInform Abstract in Full Text.

10.1002/chin.200423086

Cite

Citations (0)

ChemInform Abstract: Synthesis and Reactivity of Alkoxy-Activated Cyclobutane-1,1-dicarboxylates

ChemInform (2016)

Naresh Vemula Brian L. Pagenkopf

Abstract Review: [45 refs.

Reactivity

10.1002/chin.201646263

Cite

Citations (0)

CCDC 235394: Experimental Crystal Structure Determination

The Cambridge Structural Database (2004)

Andrew J. Boydston Youshi Yin Brian L. Pagenkopf

Crystal (programming language)

10.5517/cc7wycd

Cite

Citations (0)

CCDC 235400: Experimental Crystal Structure Determination

The Cambridge Structural Database (2004)

Andrew J. Boydston Youshi Yin Brian L. Pagenkopf

10.5517/cc7wykl

Cite

Citations (0)

Ytterbium Triflate Catalyzed Synthesis of Alkoxy-Substituted Donor−Acceptor Cyclobutanes and Their Formal [4 + 2] Cycloaddition with Imines: Stereoselective Synthesis of Piperidines

Organic Letters (2010)

Mahmoud M. Abd Rabo Moustafa Brian L. Pagenkopf

A new synthesis of 2-alkoxy-1,1-cyclobutane diesters and their first use in dipolar cycloadditions is reported. Both the formation of the donor−acceptor cyclobutanes and their subsequent annulation with in situ formed imines are catalyzed by Yb(OTf)3. Cyclobutanes with carbon donor groups give piperidines with high trans stereoselectivity.

Cyclobutanes

Annulation

Trifluoromethanesulfonate

10.1021/ol102062t

Cite

Citations (88)

Synthesis of Bullatacin

Synfacts (2007)

Brian L. Pagenkopf Hong‐Yi Zhao Jason Gorman

Bullatacin is a cytotoxic annonaceous acetogenin. Pagenkopf and co-workers use Mukaiyama’s cobalt-catalyzed oxidative cyclization of 5-hydroxy-1-alkenes to prepare the bis(tetrahydrofuran) core and metal acetylide additions to aldehydes to append the remainder of the molecule.

Acetylide

Acetogenin

Tetrahydrofuran

10.1055/s-2006-955758

Cite

Citations (0)

Correlating Structures to Electrochemiluminescence Efficiencies of Silole Compounds in Coreactant Systems

ChemElectroChem (2022)

Xiaoli Qin Liuqing Yang Xin Wang Darshil Patel Kenneth Chu

Abstract To develop efficient electrochemiluminescence (ECL) of activated silole chromophores, the relative ECL efficiencies of eight thiophene‐containing compounds are firstly studied in a coreactant pathway. The experimental results show that the extended π‐conjugated systems and donor groups of the silole emitters affect both the radical stability and emission efficiencies. It is found that the 1,1‐di‐ tert ‐butyl‐2,5‐bis[(2,2′‐bithiophen)‐5‐yl]‐3,4‐diphenylsilole (2c) compound with benzoyl peroxide (BPO) as a coreactant exhibits the highest relative ECL efficiencies among the studied systems due to its structural properties. Moreover, the absolute ECL efficiency of the potential pulsing/ECL experiment in the coreactant pathway is 6‐fold larger than that in the potentiodynamic experiment due to the short time interval for the radical species to meet and react. This work provides a guidance for structural modification of silole compounds to tune ECL performance.

Electrochemiluminescence

Chromophore

10.1002/celc.202200605

Cite

Citations (6)