Scott E Denmark

1975 …2019
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Research Output 1975 2019

1989

Modified proline auxiliaries for selective addition of organocerium reagents to hydrazones

Weber, T., Edwards, J. P. & Denmark, S. E., Sep 1989, In : Synlett. 1989, 1, p. 20-22 3 p.

Research output: Contribution to journalArticle

Hydrazones
Proline
Hydrazines
Nucleophiles
pyrrolidine

Stereochemical and spectroscopic studies on the reaction of allylstannanes with aldehydes

Denmark, S. E., Weber, E. J., Wilson, T. M. & Willson, T. M., 1989, In : Tetrahedron. 45, 4, p. 1053-1065 13 p.

Research output: Contribution to journalArticle

Lewis Acids
Aldehydes
Acetaldehyde
Isomerization
Stoichiometry

The Origin of Stereoselective Opening of Chiral Dioxane and Dioxolane Acetals: Solution Structure of Their Lewis Acid Complexes+

Denmark, S. E., Willson, T. M. & Almstead, N. G., Dec 1989, In : Journal of the American Chemical Society. 111, 26, p. 9258-9260 3 p.

Research output: Contribution to journalArticle

Lewis Acids
Acetals
Acids
1,4-dioxane
formal glycol
Azides
Phosphorus
Phenethylamines
Nitrogen
Carbon
1988

On the lewis acid induced addition of allylstannanes to aldehydes: A spectroscopic investigation

Denmark, S. E., Wilson, T. & Willson, T. M., Feb 1988, In : Journal of the American Chemical Society. 110, 3, p. 984-986 3 p.

Research output: Contribution to journalArticle

Lewis Acids
Aldehydes

Silicon‐Directed Nazarov Cyclizations. Part V. Substituent and heteroatom effects on the reaction

Denmark, S. E., Habermas, K. L. & Hite, G. A., Feb 3 1988, In : Helvetica Chimica Acta. 71, 1, p. 168-194 27 p.

Research output: Contribution to journalArticle

Cyclization
ketones
Ketones
cyclobutane
Cyclobutanes

Silicon‐Directed Nazarov Cyclizations. Part VI. The anomalous cyclization of vinyl dienyl ketones

Denmark, S. E. & Hite, G. A., Feb 3 1988, In : Helvetica Chimica Acta. 71, 1, p. 195-208 14 p.

Research output: Contribution to journalArticle

Cyclization
Ketones
ketones
Cations
Positive ions

Silicon-directed nazarov cyclizations VII. Linearly-fused tricyclics

Denmark, S. E. & Klix, R. C., 1988, In : Tetrahedron. 44, 13, p. 4043-4060 18 p.

Research output: Contribution to journalArticle

Cyclization
Silicon
Lewis Acids
Ketones
Substrates

Stereoselective alkylation of chiral α-nitro keto imine dianions. Observations on the role of amide bases

Denmark, S. E. & Ares, J. J., Jun 1988, In : Journal of the American Chemical Society. 110, 13, p. 4432-4434 3 p.

Research output: Contribution to journalArticle

Imines
Alkylation
Amides

α-Nitro Keto Hydrazone and Keto Imine Dianions. Synthetic Equivalents for the Nitroalkene d3 Synthon

Denmark, S. E., Sternberg, J. A. & Lueoend, R., Mar 1 1988, In : Journal of Organic Chemistry. 53, 6, p. 1251-1263 13 p.

Research output: Contribution to journalArticle

Hydrazones
Imines
Deprotonation
Alkylation
Iodides
1987

An AB initio study of the [1,2] proton transfer from phosphine oxide to phosphinic acid

Cramer, C. J., Dykstra, C. E. & Denmark, S. E., Apr 24 1987, In : Chemical Physics Letters. 136, 1, p. 17-21 5 p.

Research output: Contribution to journalArticle

phosphine
Phosphinic Acids
Proton transfer
phosphines
Isomers

Carbanion-Accelerated Claisen Rearrangements. 4. Asymmetric Induction via l,3,2-Oxazaphosphorinanesla

Denmark, S. E. & Marlin, J. E., Dec 1 1987, In : Journal of Organic Chemistry. 52, 26, p. 5742-5745 4 p.

Research output: Contribution to journalLetter

Anions
Lithium
Phosphorus
Cations
vinyl ether

Diphenylmethylsilyl Ether (DPMS): A Protecting Group for Alcohols

Denmark, S. E., Hammer, R. P., Weber, E. J. & Habermas, K. L., Jan 1 1987, In : Journal of Organic Chemistry. 52, 1, p. 165-168 4 p.

Research output: Contribution to journalArticle

Ether
Alcohols

Intramolecular [4 + 2]-Cycloadditions of Vinylnitrosonium Cations with Olefins

Denmark, S. E., Cramer, C. J. & Dappen, M. S., Mar 1 1987, In : Journal of Organic Chemistry. 52, 5, p. 877-887 11 p.

Research output: Contribution to journalArticle

Cycloaddition
Alkenes
Cations
Nuclear magnetic resonance
Potassium Cyanide

Organocerium Additions to SAMP-Hydrazones: General Synthesis of Chiral Amines

Denmark, S. E., Weber, T. & Piotrowski, D. W., Apr 1 1987, In : Journal of the American Chemical Society. 109, 7, p. 2224-2225 2 p.

Research output: Contribution to journalArticle

SnCl4(4-t-BuC6H4CHO)2. X-ray Crystal Structure, Solution NMR, and Implications for Reactions at Complexed Carbonyls1a

Denmark, S. E., Henke, B. R. & Weber, E., Apr 1 1987, In : Journal of the American Chemical Society. 109, 8, p. 2512-2514 3 p.

Research output: Contribution to journalArticle

Crystal structure
Nuclear magnetic resonance
X-Rays
X rays
stannic chloride
Oxides
Substitution reactions
Bearings (structural)
Sulfones
Stereochemistry
1986

Intermolecular [4 + 2]‐Cycloadditions of Nitroalkenes with Cyclic Olefins. Transformations of Cyclic Nitronates

Denmark, S. E., Cramer, C. J. & Sternberg, J. A., Dec 10 1986, In : Helvetica Chimica Acta. 69, 8, p. 1971-1989 19 p.

Research output: Contribution to journalArticle

Cycloparaffins
Cycloaddition
Cycloaddition Reaction
cycloaddition
alkenes

Intramolecular [4 + 2] Cycloadditions of (Z)-α,β-Unsaturated Aldehydes with Vinyl Sulfides and Ketene Dithioacetals

Denmark, S. E. & Sternberg, J. A., Jan 1 1986, In : Journal of the American Chemical Society. 108, 26, p. 8277-8279 3 p.

Research output: Contribution to journalArticle

Cycloaddition
Cycloaddition Reaction
Sulfides
Aldehydes
ketene

Intramolecular [4 + 2] Cycloadditions of Nitroalkenes with Olefins

Denmark, S. E., Dappen, M. S. & Cramer, C. J., Jan 1 1986, In : Journal of the American Chemical Society. 108, 6, p. 1306-1307 2 p.

Research output: Contribution to journalArticle

Cycloaddition
Cycloaddition Reaction
Alkenes
Olefins

Silicon-directed nazarov cyclizations-IV. Further studies in stereochemical control

Denmark, S. E., Habermas, K. L., Hite, G. A. & Jones, T. K., 1986, In : Tetrahedron. 42, 11, p. 2821-2829 9 p.

Research output: Contribution to journalArticle

Cyclization
Silicon
Bearings (structural)
Stereoselectivity
Isomers

The stereostructures of [1,1′-bicyclohexyl]-2,2′-diones: A reassignment

Denmark, S. E., Cramer, C. J. & Sternberg, J. A., 1986, In : Tetrahedron Letters. 27, 48, 1 p.

Research output: Contribution to journalComment/debate

The stereostructures of [1,1′-bicyclohexyl]-2,2′-diones: A reassignment

Denmark, S. E., Cramer, C. J. & Sternberg, J. A., 1986, In : Tetrahedron Letters. 27, 32, p. 3693-3696 4 p.

Research output: Contribution to journalArticle

Isomers
Crystal structure
X-Rays
X rays
1985

A General Method for the Preparation of 7-Substituted Cyclohexenals and Cycloheptenals

Jones, T. K. & Denmark, S. E., Oct 1985, In : Journal of Organic Chemistry. 50, 21, p. 4037-4045 9 p.

Research output: Contribution to journalArticle

Silanes
Acetals
Nucleophiles
Ketones
Aldehydes
1984

A vinylsilane route to trans-7a-methylhydrind-4-en-1,6-dione

Denmark, S. E. & Germanas, J. P., 1984, In : Tetrahedron Letters. 25, 12, p. 1231-1234 4 p.

Research output: Contribution to journalArticle

Stereochemistry
Fusion reactions
vinylsilane
cyclopentenone

Carbanion-accelerated Claisen rearrangements 3. Vicinal quaternary centers

Denmark, S. E. & Harmata, M. A., 1984, In : Tetrahedron Letters. 25, 15, p. 1543-1546 4 p.

Research output: Contribution to journalArticle

Hot Temperature
vinyl ether

Intramolecular [4 + 2] Cycloadditions of Nitrosoalkenes with Olefins

Denmark, S. E., Dappen, M. S. & Sternberg, J. A., Jun 1984, In : Journal of Organic Chemistry. 49, 24, p. 4741-4743 3 p.

Research output: Contribution to journalArticle

Oximes
Cycloaddition
Alkenes

Stereochemistry of Allylmetal-Aldehyde Condensations. 2. Allylstannanes

Denmark, S. E. & Weber, E. J., Dec 1 1984, In : Journal of the American Chemical Society. 106, 25, p. 7970-7971 2 p.

Research output: Contribution to journalArticle

Stereochemistry
Aldehydes
Condensation

α-chloro ketoximes as precursors of nitrosoalkenes: Preparation, stereochemistry and conformation

Denmark, S. E. & Dappen, M. S., Dec 1984, In : Journal of Organic Chemistry. 49, 5, p. 798-806 9 p.

Research output: Contribution to journalArticle

Stereochemistry
Oximes
Conformations
Cyclohexanones
Geometry
1983

Carbanion-Accelerated Claisen Rearrangements. 2. Studies on Internal Asymmetric Induction

Denmark, S. E. & Harmata, M. A., Sep 1983, In : Journal of Organic Chemistry. 48, 19, p. 3369-3370 2 p.

Research output: Contribution to journalArticle

Temperature
Hot Temperature

On the stereochemistry of allylmetal‐aldehyde condensations. Preliminary communication

Denmark, S. E. & Weber, E. J., Sep 21 1983, In : Helvetica Chimica Acta. 66, 6, p. 1655-1660 6 p.

Research output: Contribution to journalArticle

Stereochemistry
Chemical bonds
Cyclization
stereochemistry
Fluorides

Silicon‐Directed Nazarov Reactions II. Preparation and Cyclization of β‐Silyl‐substituted Divinyl Ketones

Jones, T. K. & Denmark, S. E., Jan 1 1983, In : Helvetica Chimica Acta. 66, 8, p. 2377-2396 20 p.

Research output: Contribution to journalArticle

Cyclization
Ketones
ketones
preparation
Aldehydes

Silicon‐Directed Nazarov Reactions III. Stereochemical and Mechanistic Considerations

Jones, T. K. & Denmark, S. E., Jan 1 1983, In : Helvetica Chimica Acta. 66, 8, p. 2397-2411 15 p.

Research output: Contribution to journalArticle

Cyclization
Force control
Isomers
Protons
Fusion reactions
1982

(E)-3-(Trimethylsilyl)-2-propen-1-ol. An Improved Preparation

Denmark, S. E. & Jones, T. K., Jan 1 1982, In : Journal of Organic Chemistry. 47, 23, p. 4595-4597 3 p.

Research output: Contribution to journalComment/debate

allyl alcohol

Carbanion-Accelerated Claisen Rearrangements

Denmark, S. E. & Harmata, M. A., Jan 1 1982, In : Journal of the American Chemical Society. 104, 18, p. 4972-4974 3 p.

Research output: Contribution to journalArticle

Silicon-Directed Nazarov Cyclization

Denmark, S. E. & Jones, T. K., Jan 1 1982, In : Journal of the American Chemical Society. 104, 9, p. 2642-2645 4 p.

Research output: Contribution to journalArticle

Cyclization
Silicon
1981

Facile Oxetane Formation in a Rigid Bicyclo[2.2.2]octane System

Denmark, S. E., Jul 1981, In : Journal of Organic Chemistry. 46, 15, p. 3144-3147 4 p.

Research output: Contribution to journalArticle

1980

On the stereochemistry of the SN' reaction

Denmark, S. E., 1980, S, L: [s.n.].

Research output: Book/ReportBook

1979

Synthesis of Cyclophanes Derived from l-Amino-3,7-dialkyl-4-methylnaphthalenes

Kemp, D. S., Garst, M. E., Harper, R. W., Cox, D. D., Carlson, D. & Denmark, S., Jan 1 1979, In : Journal of Organic Chemistry. 44, 25, p. 4469-4473 5 p.

Research output: Contribution to journalArticle

Hexanes
cyclophane 1
naphthalene
1975
Iron-Sulfur Proteins
Dimers
Catalytic Domain
Sulfur
Salts