Special Issue

Alan R. Katritzky's Special Issues, Vol. 37, No. 2, 1994

66 data found. 61 - 66 listedFirst Previous
Review | Special issue | Vol 37, No. 2, 1994, pp. 1263 - 1320
Published online:
DOI: 10.3987/REV-93-SR8
Synthesis and Reactions of Lithiated Monocyclic Azoles Containing Two or More Hetero-Atoms. Part I: Isoxazoles

Brian Iddon*

*The Ramage Laboratories, Department of Chemistry and Applied Chemistry, University of Salford, Salford M5 4WT, U.K.

Abstract

The metallation and halogen → metal exchange reactions of isoxazoles (1,2-oxazoles) and the reactions of the resulting organometallic derivatives, particularly lithiated derivatives, are reviewed comprehensively.

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Review | Special issue | Vol 37, No. 2, 1994, pp. 1321 - 1346
Published online:
DOI: 10.3987/REV-93-SR9
Synthesis and Reactions of Lithiated Monocyclic Azoles Containing Two or More Hetero-Atoms. Part II: Oxazoles

Brian Iddon*

*The Ramage Laboratories, Department of Chemistry and Applied Chemistry, University of Salford, Salford M5 4WT, U.K.

Abstract

The metallation and halogen → metal exchange reactions of oxazoles (1,3-axazoles) and the reactions of the resulting organometallic derivatives, particularly lifhiated derivatives, are reviewed comprehensively.

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Review | Special issue | Vol 37, No. 2, 1994, pp. 1347 - 1357
Published online:
DOI: 10.3987/REV-93-SR10
Extension of Decker Oxidation

Josef Kuthan*

*Department of Organic Chemistry, Prague Institute of Chemical Technology, 166 28 Prague, Technická 5, Czech Republic

Abstract

Ferricyanide oxidation of 1-substituted 2,4,6-triaryl-, 2,3,4,6-tetraaryl- and 2,3,4,5,6-pentaarylpyridinium salts has been found to be a general approach to the synthesis of substituted pyrroles and/or imidazoheteroaromatics. The regio- and stereoselectivities of the oxidative transformations as well as their possible mechanisms are discussed.

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Review | Special issue | Vol 37, No. 2, 1994, pp. 1359 - 1371
Published online:
DOI: 10.3987/REV-93-SR12
Small Ring Compounds Containing Sulfur Atoms

Shigeru Oae*

*Inatitute of Heteroatom Chemistry, 25009 Hirao, Mihara-cho, Minamilawachi-gun, Osaka 587, Japam

Abstract

Small ring compounds containing sulfur atoms, especially three and four membered heterocycles, were reviewed in the light of recent findings and hypotheses.

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Review | Special issue | Vol 37, No. 2, 1994, pp. 1373 - 1415
Published online:
DOI: 10.3987/REV-93-SR14
Contributions of Molecular Orbitals Techniques to the Study of Dihydropyridines

Marcus E. Brewster,* Emil Pop, Ming-Ju Huang, and Nicholas Bodor*

*The College od Pharmacy, Center for Drug Discovery, JHMHC, Box 100497, University of Florida, Gainesville, FL 32610, U.S.A.

Abstract

The discovery that dihydropyridines constitute the operational subunits in important coenzymes such as NAD(P)H has directed major research efforts at understanding the redox chemistry of these heterocycles. Molecular orbital approaches have been extremely useful in this regard. This short review is designed to survey the application of semiempirical and ab initio techniques to the study of mechanisms of dihydropyridine oxidation, transition state structure and the mechanisms thought responsible for stereospecificity of enzymatic oxidoreductions which utilize NAD(P)H as a coenzyme.

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Review | Special issue | Vol 37, No. 2, 1994, pp. 1417 - 1439
Published online:
DOI: 10.3987/REV-93-SR18
Heteroaromatic-fused 3-Sulfolenes

Kaori Ando* and Hiroaki Takayama*

*College of Education, University of Ryukyus, Nishihara-cho, Okinawa 903-01, Japan

Abstract

This review deals with our recent works1 on the preparation of heteroaromatic-fused 3-sulfolenes (5) and their chemistry, especially Diels-Alder reactions with several dienophiles under thermal or high pressure conditions. Related chemistry of the positional isomers (6) is also reviewed.

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66 data found. 61 - 66 listedFirst Previous