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1

Structure of Lithium 2,2,6,6-Tetramethylpiperidine (LiTMP) and Lithium 2,2,4,6,6-Pentamethylpiperidide (LiPMP) in Hydrocarbon Solution: Assignment of Cyclic Trimer and Tetramer Conformational Isomers

Lucht, Brett L., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

1994

Language:

english

File:

PDF, 247 KB

english, 1994

2

Autocatalysis in Lithium Diisopropylamide-Mediated Ortholithiations

Singh, Kanwal J., Hoepker, Alexander C., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2008

Language:

english

File:

PDF, 429 KB

english, 2008

3

Lithium Hexamethyldisilazide-Mediated Enolizations: Influence of Chelating Ligands and Hydrocarbon Cosolvents on the Rates and Mechanisms

Godenschwager, Peter F., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2007

Language:

english

File:

PDF, 178 KB

english, 2007

4

Lithium Hexamethyldisilazide-Mediated Enolizations: Influence of Triethylamine on E / Z Selectivities and Enolate Reactivities

Godenschwager, Peter F., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2008

Language:

english

File:

PDF, 181 KB

english, 2008

5

Is N,N,N',N'-tetramethylethylenediamine a good ligand for lithium?

Collum, David B.

Journal:

Accounts of Chemical Research

Year:

1992

Language:

english

File:

PDF, 973 KB

english, 1992

6

Lithium Hexamethyldisilazide: A View of Lithium Ion Solvation through a Glass-Bottom Boat

Lucht, Brett L., Collum, David B.

Journal:

Accounts of Chemical Research

Year:

1999

Language:

english

File:

PDF, 287 KB

english, 1999

7

ChemInform Abstract: Method of Continuous Variations: Applications of Job Plots to the Study of Molecular Associations in Organometallic Chemistry

Renny, Joseph S., Tomasevich, Laura L., Tallmadge, Evan H., Collum, David B.

Journal:

Year:

2014

File:

PDF, 18 KB

2014

8

Lithium Hexamethyldisilazide-Mediated Enolization of Acylated Oxazolidinones: Solvent, Cosolvent, and Isotope Effects on Competing Monomer- and Dimer-Based Pathways

Reyes-Rodríguez, Gabriel J., Algera, Russell F., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2017

Language:

english

File:

PDF, 1.28 MB

english, 2017

9

Highly Stereoselective Synthesis of Tetrasubstituted Acyclic All-carbon Olefins via Enol Tosylation and Suzuki‒Miyaura Coupling

Li, Beryl X., Le, Diane N., Mack, Kyle A, McClory, Andrew, Lim, Ngiap-Kie, Cravillion, Theresa, Savage, Scott, Han, Chong, Collum, David B., Zhang, Haiming, Gosselin, Francis

Journal:

Journal of the American Chemical Society

Year:

2017

Language:

english

File:

PDF, 526 KB

english, 2017

10

Lithium Hexamethyldisilazide-Mediated Enolization of Highly Substituted Aryl Ketones: Structural and Mechanistic Basis of the E/Z Selectivities

Mack, Kyle A, McClory, Andrew, Zhang, Haiming, Gosselin, Francis, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2017

Language:

english

File:

PDF, 759 KB

english, 2017

11

Structure, Reactivity, and Synthetic Applications of Sodium Diisopropylamide

Woltornist, Ryan A., Ma, Yun, Algera, Russell F., Zhou, Yuhui, Zhang, Zirong, Collum, David B.

Journal:

Year:

2020

File:

PDF, 372 KB

2020

12

Lithiumdiisopropylamid: Reaktionskinetik in Lösung und Folgerungen für die organische Synthese

David B. Collum, Anne J. McNeil, Antonio Ramirez

Journal:

Angewandte Chemie

Year:

2007

Language:

german

File:

PDF, 647 KB

german, 2007

13

Lithium Diisopropylamide: Solution Kinetics and Implications for Organic Synthesis

David B. Collum, Anne J. McNeil, Antonio Ramirez

Journal:

Angewandte Chemie International Edition

Year:

2007

Language:

english

File:

PDF, 635 KB

english, 2007

14

ChemInform Abstract: Lithium Hexamethyldisilazide: A View of Lithium Ion Solvation Through a Glass-Bottom Boat

Brett L. Lucht, David B. Collum

Journal:

Year:

2000

File:

PDF, 25 KB

2000

15

ChemInform Abstract: Solution Structures and Reactivities of the Mixed Aggregates Derived from n-Butyllithium and Vicinal Amino Alkoxides.

Xiufeng Sun, Mark D. Winemiller, Bosong Xiang, David B. Collum

Journal:

Year:

2001

File:

PDF, 25 KB

2001

16

BF3-Mediated Additions of Organolithiums to Ketimines: X-Ray Crystal Structures of BF3—Ketimine Complexes.

Yun Ma, Emil Lobkovsky, David B. Collum

Journal:

Year:

2005

File:

PDF, 24 KB

2005

17

6Li15N heteronuclear multiple quantum correlation (HMQC) spectroscopy: Application to the structure determination of lithium 2,2,6,6-tetramethylpiperidide mixed aggregates

James H. Gilchrist, Aidan T. Harrison, David J. Fuller, David B. Collum

Journal:

Magnetic Resonance in Chemistry

Year:

1992

Language:

english

File:

PDF, 404 KB

english, 1992

18

13C NMR study of ortho-, meta- and para- substituted phenyldiphenylamines: Substituent effect correlations

Eugene Grimley, David H. Collum, Earl G. Alley, Bobby the late Layton

Journal:

Magnetic Resonance in Chemistry

Year:

1981

Language:

english

File:

PDF, 634 KB

english, 1981

19

Optimizing HMQC for ISn spin systems

Bosong Xiang, Mark D. Winemiller, Timothy F. Briggs, David J. Fuller, David B. Collum

Journal:

Magnetic Resonance in Chemistry

Year:

2001

Language:

english

File:

PDF, 171 KB

english, 2001

20

Palladium-catalyzed stille couplings of aryl-, vinyl-, and alkyltrichlorostannanes in aqueous solution

Roopa Rai, Katherine B. Aubrecht, David B. Collum

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 188 KB

english, 1995

21

Reductions and radical cyclizations of aryl and alkyl bromides mediated by NaBH4 in aqueous base

Roopa Rai, David B Collum

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 209 KB

english, 1994

22

Lithium bis(2-adamantyl)amide: Structure and reactivity of an extremely hindered lithium dialkylamide

Kiyoshi Sakuma, James H. Gilchrist, Floyd E. Romesberg, Cresta E. Cajthaml, David B. Collum

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 248 KB

english, 1993

23

Conversion of ketones to trisubstituted olefins under neutral conditions

Fariborz Mohamadi, David B. Collum

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 97 KB

english, 1984

24

A highly stereoselective synthesis of the C18 cecropia juvenile hormone

W.Clark Still, John H. McDonald III, David B. Collum, Abhijit Mitra

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 110 KB

english, 1979

25

Kinetic cyanations of ketone enolates

Daniel Kahne, David B. Collum

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 183 KB

english, 1981

26

Cleaners for military machine parts—is there a green alternative?

Hitesh K. Trivedi, Maurice L. Massey, Rabi S. Bhattacharya, Gerald A. Strahl, David Collum

Journal:

Journal of Cleaner Production

Year:

2004

Language:

english

File:

PDF, 900 KB

english, 2004

27

Next generation lubrication system for weapons

Hitesh K. Trivedi, Maurice M. Massey, Rabi S. Bhattacharya, Gerald A. Strahl, David Collum

Journal:

Tribology Letters

Year:

2001

Language:

english

File:

PDF, 146 KB

english, 2001

28

Solution structures of lithium dialkylamides and related N-lithiated species: results from lithium-6-nitrogen-15 double labeling experiments

Collum, David B.

Journal:

Accounts of Chemical Research

Year:

1993

Language:

english

File:

PDF, 866 KB

english, 1993

29

Lithium Diisopropylamide-Mediated Reactions of Imines, Unsaturated Esters, Epoxides, and Aryl Carbamates: Influence of Hexamethylphosphoramide and Ethereal Cosolvents on Reaction Mechanisms

Ma, Yun, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2007

Language:

english

File:

PDF, 150 KB

english, 2007

30

Royal Academy of Medicine — proceedings of meetings of section of pathology 1984/1985

Ian Temperley, S. McCann, D. Buckner, John M. Goldman, D. O’Leary, E. C. Sweeney, Joan Mullaney, L. M. T. Collum, R. Hone, David Coleman

Journal:

Irish Journal of Medical Science

Year:

1986

Language:

english

File:

PDF, 241 KB

english, 1986

31

Lithium Phenolates Solvated by Tetrahydrofuran and 1,2-Dimethoxyethane: Structure Determination Using the Method of Continuous Variation

De Vries, Timothy S., Goswami, Anandarup, Liou, Lara R., Gruver, Jocelyn M., Jayne, Emily, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2009

Language:

english

File:

PDF, 2.00 MB

english, 2009

32

Structure of lithium hexamethyldisilazide in the presence of hexamethylphosphoramide. Spectroscopic and computational studies of monomers, dimers, and triple ions

Romesberg, Floyd E., Bernstein, Max P., Gilchrist, James H., Harrison, Aidan T., Fuller, David J., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

1993

Language:

english

File:

PDF, 1.47 MB

english, 1993

33

Synthesis of the polyether antibiotic monensin. 2. Preparation of intermediates

Collum, David B., McDonald, John H., Still, W. Clark

Journal:

Journal of the American Chemical Society

Year:

1980

Language:

english

File:

PDF, 353 KB

english, 1980

34

Synthesis of the polyether antibiotic monensin. 1. Strategy and degradations

Collum, David B., McDonald, John H., Still, W. Clark

Journal:

Journal of the American Chemical Society

Year:

1980

Language:

english

File:

PDF, 237 KB

english, 1980

35

The structure of lithium tetramethylpiperidide and lithium diisopropylamide in the presence of hexamethylphosphoramide: structure-dependent distribution of cyclic and open dimers, ion triplets, and monomers

Romesberg, Floyd E., Gilchrist, James H., Harrison, Aidan T., Fuller, David J., Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

1991

Language:

english

File:

PDF, 865 KB

english, 1991

36

NMR Spectroscopic Investigations of Mixed Aggregates Underlying Highly Enantioselective 1,2-Additions of Lithium Cyclopropylacetylide to Quinazolinones

Parsons,, Rodney L., Fortunak, Joseph M., Dorow, Roberta L., Harris, Gregory D., Kauffman, Goss S., Nugent, William A., Winemiller, Mark D., Briggs, Timothy F., Xiang, Bosong, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2001

Language:

english

File:

PDF, 140 KB

english, 2001

37

Lithium Diisopropylamide-Mediated Enolizations: Solvent-Dependent Mixed Aggregation Effects

Sun, Xiufeng, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2000

Language:

english

File:

PDF, 145 KB

english, 2000

38

Reaction of Lithium Diethylamide with an Alkyl Bromide and Alkyl Benzenesulfonate: Origins of Alkylation, Elimination, and Sulfonation

Gupta, Lekha, Ramírez, Antonio, Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2010

Language:

english

File:

PDF, 1.20 MB

english, 2010

39

BF 3 -Mediated Additions of Organolithiums to Ketimines: X-ray Crystal Structures of BF 3 −Ketimine Complexes

Ma, Yun, Lobkovsky, Emil, Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 110 KB

english, 2005

40

Computational Studies of Lithium Diisopropylamide Deaggregation

Hoepker, Alexander C., Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2011

Language:

english

File:

PDF, 2.86 MB

english, 2011

41

Lithium Diisopropylamide-Mediated Enolizations: Solvent-Independent Rates, Solvent-Dependent Mechanisms

Sun, Xiufeng, Collum, David B.

Journal:

Journal of the American Chemical Society

Year:

2000

Language:

english

File:

PDF, 174 KB

english, 2000

42

Lithium Diisopropylamide-Mediated Ortholithiations: Lithium Chloride Catalysis

Gupta, Lekha, Hoepker, Alexander C., Singh, Kanwal J., Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2009

Language:

english

File:

PDF, 99 KB

english, 2009

43

Lithium Diisopropylamide-Mediated Ortholithiation of 2-Fluoropyridines: Rates, Mechanisms, and the Role of Autocatalysis

Gupta, Lekha, Hoepker, Alexander C., Ma, Yun, Viciu, Mihai S., Faggin, Marc F., Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2013

Language:

english

File:

PDF, 1.56 MB

english, 2013

44

Structure and reactivity of lithium diisopropylamide (LDA) in hydrocarbon solutions. Formation of unsolvated ketone, ester, and carboxamide enolates

Kim, Yong Joo, Bernstein, Max P., Roth, Angela S. Galiano, Romesberg, Floyd E., Williard, Paul G., Fuller, David J., Harrison, Aidan T., Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 651 KB

english, 1991

45

Enediolate–Dilithium Amide Mixed Aggregates in the Enantioselective Alkylation of Arylacetic Acids: Structural Studies and a Stereochemical Model

Ma, Yun, Stivala, Craig E., Wright, Ashley M., Hayton, Trevor, Liang, Jun, Keresztes, Ivan, Lobkovsky, Emil, Collum, David B., Zakarian, Armen

Journal:

Journal of the American Chemical Society

Year:

2013

Language:

english

File:

PDF, 862 KB

english, 2013

46

Distribution of juglone and related compounds in pecan and their effect on Fusicladium effusum

Hedin, Paul A., Collum, David H., Langhans, Victor E., Graves, Clinton H.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1980

Language:

english

File:

PDF, 422 KB

english, 1980

47

Synthesis of a 7-Azaindole by Chichibabin Cyclization: Reversible Base-Mediated Dimerization of 3-Picolines

Ma, Yun, Breslin, Sean, Keresztes, Ivan, Lobkovsky, Emil, Collum, David B.

Journal:

Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 272 KB

english, 2008

48

A new synthesis of amides and macrocyclic lactams

Collum, David B., Chen, Shen-Chu, Ganem, Bruce

Journal:

Journal of Organic Chemistry

Year:

1978

Language:

english

File:

PDF, 294 KB

english, 1978

49

Substituent effects on the stereochemistry of substituted cyclohexanone dimethylhydrazone alkylations. An x-ray crystal structure of lithiated cyclohexanone dimethylhydrazone

Collum, David B., Kahne, Daniel, Gut, Sally A., DePue, Randall T., Mohamadi, Fariborz, Wanat, Robert A., Clardy, Jon, Van Duyne, G.

Journal:

Journal of the American Chemical Society

Year:

1984

Language:

english

File:

PDF, 658 KB

english, 1984

50

Structural and Rate Studies of the 1,2-Additions of Lithium Phenylacetylide to Lithiated Quinazolinones: Influence of Mixed Aggregates on the Reaction Mechanism

Briggs, Timothy F., Winemiller, Mark D., Collum, David B., Parsons,, Rodney L., Davulcu, Akin H., Harris, Gregory D., Fortunak, Joseph M., Confalone, Pat N.

Journal:

Journal of the American Chemical Society

Year:

2004

Language:

english

File:

PDF, 184 KB

english, 2004