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Papers by Gerald Larson

Research paper thumbnail of A Synthesis of 2, 2-Ethylenedioxy-5-ketones

Research paper thumbnail of Preparation of acyloxysilanes

Research paper thumbnail of Silylated diaryl -2-pyrrolidinemethanols in catalysis

Speciality Chemicals, 2009

Research paper thumbnail of Synthesis of silyl cyanohydrins

Research paper thumbnail of Pyridinium salts containing alkoxysilyl groups

Research paper thumbnail of 3-METHACRYLOXY- and 3-ACRYLOXYISOBUTYLALKOXYSILANES

Research paper thumbnail of 3-Methacryloxyisobutylalkoxysilanes and 3-acryloxyisobutylalkoxysilanes

Research paper thumbnail of Mass spectrometry in structural and stereochemical problems–CLXXXIX: Electron‐impact induced fragmentations and rearrangements of alkoxycyclohexanol trimethylsilyl ethers and alkoxycyclohexyl trimethylsilanes

Journal of Mass Spectrometry

However, it is important to remember that the equilibrium hypothesis would appear to be capable o... more However, it is important to remember that the equilibrium hypothesis would appear to be capable of explaining existing data, and therefore the charge is not necessarily localized in the classical sense, except per-haps in a small fraction of ions of relatively low internal energy.2e

Research paper thumbnail of Preparation of Trans-β-Acyl Cyclopentanols and Cyclohexanols

Synthetic Communications, 1980

ABSTRACT

Research paper thumbnail of Methyldiphenylchlorosilane

Encyclopedia of Reagents for Organic Synthesis, 2001

Research paper thumbnail of A regio- and stereoselective synthesis of (Z) enol methyldiphenylsilyl ethers

Tetrahedron Letters, 1989

This same rearrangement in acetonitrile, however, gives the Z isomer cleanly, thus providing a re... more This same rearrangement in acetonitrile, however, gives the Z isomer cleanly, thus providing a regio-and stereoselective entry into (Z) enol silyl ethers.

Research paper thumbnail of A facile synthesis of symmetrical 1,1-disubstituted ethylenes

Tetrahedron Letters, 1982

The magnesium used in the initial work was a gift of the Eli Lilly Co. and several years old. Ana... more The magnesium used in the initial work was a gift of the Eli Lilly Co. and several years old. Analysis of this material was not available, but it gave good reactions on other systems in our laboratory. The high purity magnesium turnings employed successfully were obtained ...

Research paper thumbnail of A facile synthesis of 4-oxo carboxylic acids from γ-butyrolactone

Tetrahedron Letters, 1982

Abstract An efficient, high-yield, three-step preparation of 4-oxo carboxylic acids from γ-butyro... more Abstract An efficient, high-yield, three-step preparation of 4-oxo carboxylic acids from γ-butyrolactone via silylation and reaction with a Grignard reagent is presented.

Research paper thumbnail of The preparation and chemistry of (r)-(1-naphthyl)phenylmethylsilylmethyllithium: stereochemistry at silicon in the elimination of β-hydroxysilanes

Tetrahedron, 1988

ABSTRACT

Research paper thumbnail of The Reaction of α,α-Dichlorobenzyltrimethylsilane with Aldehydes and Ketones

Synthetic Communications, 1989

Page 1. SYNTHETIC COMMUNICATIONS, i9(7&a), 1405-1412 (1989) THE REACTION OF C ~ , ~ - DICHLOR... more Page 1. SYNTHETIC COMMUNICATIONS, i9(7&a), 1405-1412 (1989) THE REACTION OF C ~ , ~ - DICHLOROBENZYLTRI - METHYLSILANE WITH ALDEHYDES AND KETONES. Gerald L. Larson'l, Jose A. Prieto2 and Luis ...

Research paper thumbnail of Trichloromethyl Anion Chemistry from Trimethylsilyl Trichloroacetate

Synthetic Communications, 1987

The reaction of trimethylsilyl trichloroacetate with aldehydes and Retones in the presence of flu... more The reaction of trimethylsilyl trichloroacetate with aldehydes and Retones in the presence of fluoride ion gives the trichloromethyl adducts. With potassium fluoride the reaction with cyclohexenone and crotonaldehyde results in clear 1,2 addition.

Research paper thumbnail of The Stereochemistry of the Reaction of α-Silyl Lithium Reagents with Cyclic Tert-butyldimethylsilyl Acyloins

Synthetic Communications, 1989

The reactions of the tert-butyldimethylsilylated acyloins of five-, six- and seven-membered rings... more The reactions of the tert-butyldimethylsilylated acyloins of five-, six- and seven-membered rings with the lithium reagents of benzyltrimethylsilane, thiophenoxymethyltrimethylsilane and tri-methylsilyl acetonitrile were studied. These reactions favor formation of the substituted (Z) exo methylidene silyl ethers in moderate yields.

Research paper thumbnail of Preparation and Reactions of Ethyl 1-(Diphenyhnethylsilyl)cyclopropanecarboxylate 1

Research paper thumbnail of (.alpha.-Haloethyl)silanes optically active at carbon and at silicon. Synthesis and absolute configuration

Organometallics, 1983

Page 1. 810 Organometallics 1983, 2, 810-815 Table IV. Final Fractional Coordinates (xlOS for Pt ... more Page 1. 810 Organometallics 1983, 2, 810-815 Table IV. Final Fractional Coordinates (xlOS for Pt and I, x104 for Others) with Estimated Standard Deviations in Parentheses atom X Y z C(6 j C(7) Me,Pt(PzzCH,)I, (1 ) 16712 (5 ...

Research paper thumbnail of alpha.-Silylation of lithium ester enolates

Journal of the American Chemical Society, 1981

Research paper thumbnail of A Synthesis of 2, 2-Ethylenedioxy-5-ketones

Research paper thumbnail of Preparation of acyloxysilanes

Research paper thumbnail of Silylated diaryl -2-pyrrolidinemethanols in catalysis

Speciality Chemicals, 2009

Research paper thumbnail of Synthesis of silyl cyanohydrins

Research paper thumbnail of Pyridinium salts containing alkoxysilyl groups

Research paper thumbnail of 3-METHACRYLOXY- and 3-ACRYLOXYISOBUTYLALKOXYSILANES

Research paper thumbnail of 3-Methacryloxyisobutylalkoxysilanes and 3-acryloxyisobutylalkoxysilanes

Research paper thumbnail of Mass spectrometry in structural and stereochemical problems–CLXXXIX: Electron‐impact induced fragmentations and rearrangements of alkoxycyclohexanol trimethylsilyl ethers and alkoxycyclohexyl trimethylsilanes

Journal of Mass Spectrometry

However, it is important to remember that the equilibrium hypothesis would appear to be capable o... more However, it is important to remember that the equilibrium hypothesis would appear to be capable of explaining existing data, and therefore the charge is not necessarily localized in the classical sense, except per-haps in a small fraction of ions of relatively low internal energy.2e

Research paper thumbnail of Preparation of Trans-β-Acyl Cyclopentanols and Cyclohexanols

Synthetic Communications, 1980

ABSTRACT

Research paper thumbnail of Methyldiphenylchlorosilane

Encyclopedia of Reagents for Organic Synthesis, 2001

Research paper thumbnail of A regio- and stereoselective synthesis of (Z) enol methyldiphenylsilyl ethers

Tetrahedron Letters, 1989

This same rearrangement in acetonitrile, however, gives the Z isomer cleanly, thus providing a re... more This same rearrangement in acetonitrile, however, gives the Z isomer cleanly, thus providing a regio-and stereoselective entry into (Z) enol silyl ethers.

Research paper thumbnail of A facile synthesis of symmetrical 1,1-disubstituted ethylenes

Tetrahedron Letters, 1982

The magnesium used in the initial work was a gift of the Eli Lilly Co. and several years old. Ana... more The magnesium used in the initial work was a gift of the Eli Lilly Co. and several years old. Analysis of this material was not available, but it gave good reactions on other systems in our laboratory. The high purity magnesium turnings employed successfully were obtained ...

Research paper thumbnail of A facile synthesis of 4-oxo carboxylic acids from γ-butyrolactone

Tetrahedron Letters, 1982

Abstract An efficient, high-yield, three-step preparation of 4-oxo carboxylic acids from γ-butyro... more Abstract An efficient, high-yield, three-step preparation of 4-oxo carboxylic acids from γ-butyrolactone via silylation and reaction with a Grignard reagent is presented.

Research paper thumbnail of The preparation and chemistry of (r)-(1-naphthyl)phenylmethylsilylmethyllithium: stereochemistry at silicon in the elimination of β-hydroxysilanes

Tetrahedron, 1988

ABSTRACT

Research paper thumbnail of The Reaction of α,α-Dichlorobenzyltrimethylsilane with Aldehydes and Ketones

Synthetic Communications, 1989

Page 1. SYNTHETIC COMMUNICATIONS, i9(7&a), 1405-1412 (1989) THE REACTION OF C ~ , ~ - DICHLOR... more Page 1. SYNTHETIC COMMUNICATIONS, i9(7&a), 1405-1412 (1989) THE REACTION OF C ~ , ~ - DICHLOROBENZYLTRI - METHYLSILANE WITH ALDEHYDES AND KETONES. Gerald L. Larson'l, Jose A. Prieto2 and Luis ...

Research paper thumbnail of Trichloromethyl Anion Chemistry from Trimethylsilyl Trichloroacetate

Synthetic Communications, 1987

The reaction of trimethylsilyl trichloroacetate with aldehydes and Retones in the presence of flu... more The reaction of trimethylsilyl trichloroacetate with aldehydes and Retones in the presence of fluoride ion gives the trichloromethyl adducts. With potassium fluoride the reaction with cyclohexenone and crotonaldehyde results in clear 1,2 addition.

Research paper thumbnail of The Stereochemistry of the Reaction of α-Silyl Lithium Reagents with Cyclic Tert-butyldimethylsilyl Acyloins

Synthetic Communications, 1989

The reactions of the tert-butyldimethylsilylated acyloins of five-, six- and seven-membered rings... more The reactions of the tert-butyldimethylsilylated acyloins of five-, six- and seven-membered rings with the lithium reagents of benzyltrimethylsilane, thiophenoxymethyltrimethylsilane and tri-methylsilyl acetonitrile were studied. These reactions favor formation of the substituted (Z) exo methylidene silyl ethers in moderate yields.

Research paper thumbnail of Preparation and Reactions of Ethyl 1-(Diphenyhnethylsilyl)cyclopropanecarboxylate 1

Research paper thumbnail of (.alpha.-Haloethyl)silanes optically active at carbon and at silicon. Synthesis and absolute configuration

Organometallics, 1983

Page 1. 810 Organometallics 1983, 2, 810-815 Table IV. Final Fractional Coordinates (xlOS for Pt ... more Page 1. 810 Organometallics 1983, 2, 810-815 Table IV. Final Fractional Coordinates (xlOS for Pt and I, x104 for Others) with Estimated Standard Deviations in Parentheses atom X Y z C(6 j C(7) Me,Pt(PzzCH,)I, (1 ) 16712 (5 ...

Research paper thumbnail of alpha.-Silylation of lithium ester enolates

Journal of the American Chemical Society, 1981

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