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1

Quantum Mechanical Investigations of Organocatalysis: Mechanisms, Reactivities, and Selectivities

Cheong, Paul Ha-Yeon, Legault, Claude Y., Um, Joann M., Çelebi-Ölçüm, Nihan, Houk, K. N.

Journal:

Chemical Reviews

Year:

2011

Language:

english

File:

PDF, 43.48 MB

english, 2011

2

Computational investigations of the stereoselectivities of proline-related catalysts for aldol reactions

Christophe Allemann, Joann M. Um, K.N. Houk

Journal:

Journal of Molecular Catalysis A: Chemical

Year:

2010

Language:

english

File:

PDF, 949 KB

english, 2010

3

Origin of Stereoselectivity in the Reduction of a Planar Oxacarbenium

Um, Joann M., Houk, K. N., Phillips, Andrew J.

Journal:

Organic Letters

Year:

2008

Language:

english

File:

PDF, 773 KB

english, 2008

4

Efficient Synthesis of 11-cis-Retinoids

Babak Borhan, María L. Souto, Joann M. Um, Bishan Zhou, Koji Nakanishi

Journal:

Chemistry - A European Journal

Year:

1999

Language:

english

File:

PDF, 100 KB

english, 1999

5

Synthesis of a Photoaffinity-Labeled (11Z)-Retinal: Identification of Retinal/Rhodopsin Cross-Linked Sites along the Visual-Transduction Path

Maria L. Souto, Joann Um, Babak Borhan, Koji Nakanishi

Journal:

Helvetica Chimica Acta

Year:

2000

Language:

english

File:

PDF, 327 KB

english, 2000

6

Molybdenum-Catalyzed Asymmetric Allylic Alkylation Reactions Using Mo(CO)6 as Precatalyst

Michael Palucki, Joann M. Um, David A. Conlon, Nobuyoshi Yasuda, David L. Hughes, Bing Mao, Jian Wang, Paul J. Reider

Journal:

Advanced Synthesis & Catalysis

Year:

2001

Language:

english

File:

PDF, 88 KB

english, 2001

7

Transition States and Origins of 1,4-Asymmetric Induction in Alkylations of 2,2,6-Trialkylpiperidine Enamines

Joann M. Um, Naeem S. Kaka, David M. Hodgson, K. N. Houk

Journal:

Chemistry - A European Journal

Year:

2010

Language:

english

File:

PDF, 660 KB

english, 2010

8

ChemInform Abstract: Synthesis of a Photoaffinity-Labeled (11Z)-Retinal (I): Identification of Retinal/Rhodopsin Cross-Linked Site Along the Visual-Transduction Path.

Maria L. Souto, Joann Um, Babak Borhan, Koji Nakanishi

Journal:

Year:

2000

File:

PDF, 26 KB

2000

9

ChemInform Abstract: Molybdenum-Catalyzed Asymmetric Allylic Alkylation Reactions Using Mo(CO)6 as Precatalyst.

Michael Palucki, Joann M. Um, David A. Conlon, Nobuyoshi Yasuda, David L. Hughes, Bing Mao, Jian Wang, Paul J. Reider

Journal:

Year:

2001

Language:

english

File:

PDF, 37 KB

english, 2001

10

ChemInform Abstract: A Torquoselective Extrusion of Isoxazoline N-Oxides. Application to the Synthesis of Aryl Vinyl and Divinyl Ketones for Nazarov Cyclization.

Daniel P. Canterbury, Ildiko R. Herrick, Joann Um, K. N. Houk, Alison J. Frontier

Journal:

Year:

2009

File:

PDF, 45 KB

2009

11

ChemInform Abstract: Quantum Mechanical Investigations of Organocatalysis: Mechanisms, Reactivities, and Selectivities

Paul Ha-Yeon Cheong, Claude Y. Legault, Joann M. Um, Nihan Celebi-Olcum, K. N. Houk

Journal:

Year:

2011

File:

PDF, 18 KB

2011

12

Stereoselective synthesis of an anti-HIV drug candidate

David A. Conlon, Mark S. Jensen, Michael Palucki, Nobuyoshi Yasuda, Joann M. Um, Chunhua Yang, Frederick W. Hartner, Fuh-Rong Tsay, Yi Hsiao, Philip Pye, Nelo R. Rivera, David L. Hughes

Journal:

Year:

2005

Language:

english

File:

PDF, 197 KB

english, 2005

13

A torquoselective extrusion of isoxazoline N-oxides. Application to the synthesis of aryl vinyl and divinyl ketones for Nazarov cyclization

Daniel P. Canterbury, Ildiko R. Herrick, Joann Um, K.N. Houk, Alison J. Frontier

Journal:

Year:

2009

Language:

english

File:

PDF, 1.66 MB

english, 2009

14

Nature of Intermediates in Organo-SOMO Catalysis of α-Arylation of Aldehydes

Um, Joann M., Gutierrez, Osvaldo, Schoenebeck, Franziska, Houk, K. N., MacMillan, David W. C.

Journal:

Journal of the American Chemical Society

Year:

2010

Language:

english

File:

PDF, 3.47 MB

english, 2010

15

Development of a New and Practical Route to Chiral 3,4-Disubstituted Cyclopentanones: Asymmetric Alkylation and Intramolecular Cyclopropanation as Key C−C Bond-Forming Steps

Palucki, Michael, Um, Joann M., Yasuda, Nobuyoshi, Conlon, David A., Tsay, Fuh-Rong, Hartner, Frederick W., Hsiao, Yi, Marcune, Benjamin, Karady, Sandor, Hughes, David L., Dormer, Peter G., Reider, Pa

Journal:

Journal of Organic Chemistry

Year:

2002

Language:

english

File:

PDF, 149 KB

english, 2002

16

Computational Investigation of the Competition between the Concerted Diels–Alder Reaction and Formation of Diradicals in Reactions of Acrylonitrile with Nonpolar Dienes

James, Natalie C., Um, Joann M., Padias, Anne B., Hall, H. K., Houk, K. N.

Journal:

Journal of Organic Chemistry

Year:

2013

Language:

english

File:

PDF, 1.75 MB

english, 2013

17

Quantum Mechanical Investigation of the Effect of Catalyst Fluorination in the Intermolecular Asymmetric Stetter Reaction

Um, Joann M., DiRocco, Daniel A., Noey, Elizabeth L., Rovis, Tomislav, Houk, K. N.

Journal:

Journal of the American Chemical Society

Year:

2011

Language:

english

File:

PDF, 3.56 MB

english, 2011

18

Synthesis and C -Alkylation of Hindered Aldehyde Enamines

Hodgson, David M., Bray, Christopher D., Kindon, Nicholas D., Reynolds, Nigel J., Coote, Steven J., Um, Joann M., Houk, K. N.

Journal:

Journal of Organic Chemistry

Year:

2009

Language:

english

File:

PDF, 470 KB

english, 2009

19

Oxyallyl Exposed: An Open-Shell Singlet with Picosecond Lifetimes in Solution but Persistent in Crystals of a Cyclobutanedione Precursor

Kuzmanich, Gregory, Spänig, Fabian, Tsai, Chao-Kuan, Um, Joann M., Hoekstra, Ryan M., Houk, K. N., Guldi, Dirk M., Garcia-Garibay, Miguel A.

Journal:

Journal of the American Chemical Society

Year:

2011

Language:

english

File:

PDF, 2.10 MB

english, 2011

20

Origins of Stereoselectivity in the Oxido-Alkylidenation of Alkynes

Canterbury, Daniel P., Frontier, Alison J., Um, Joann M., Cheong, Paul H.-Y., Goldfeld, Dahlia A., Huhn, Richard A., Houk, K. N.

Journal:

Organic Letters

Year:

2008

Language:

english

File:

PDF, 1.06 MB

english, 2008

21

Thermodynamic Control of the Electrocyclic Ring Opening of Cyclobutenes: CX Substituents at C-3 Mask the Kinetic Torquoselectivity

Um, Joann M., Xu, Huadong, Houk, K. N., Tang, Weiping

Journal:

Journal of the American Chemical Society

Year:

2009

Language:

english

File:

PDF, 798 KB

english, 2009

22

The Catalyst-Controlled Regiodivergent Chlorination of Phenols

Maddox, Sean M., Dinh, Andrew N., Armenta, Felipe, Um, Joann, Gustafson, Jeffrey L.

Journal:

Organic Letters

Year:

2016

Language:

english

File:

PDF, 1.08 MB

english, 2016

23

Strong, vertical TB programme embedded in a developing primary healthcare system: impact on patient and community experiences in Cambodia

Sundaram, Neisha, James, Richard, Sreynimol, Um, Linda, Pen, Yoong, Joanne, Saly, Saint, Koeut, Pichenda, Eang, Mao Tan, Coker, Richard, Khan, Mishal

Journal:

Health Policy and Planning

Year:

2018

Language:

english

File:

PDF, 40 KB

english, 2018

24

A strong TB programme embedded in a developing primary healthcare system is a lose-lose situation: insights from patient and community perspectives in Cambodia

Sundaram, Neisha, James, Richard, Sreynimol, Um, Linda, Pen, Yoong, Joanne, Saly, Saint, Koeut, Pichenda, Eang, Mao Tan, Coker, Richard, Khan, Mishal S

Journal:

Health Policy and Planning

Year:

2017

Language:

english

File:

PDF, 218 KB

english, 2017