A useful preparation of 4-substituted 5-hydroxy-3-oxocyclopentene
โ Scribed by G. Piancatelli; A. Scettri; S. Barbadoro
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- French
- Weight
- 162 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
The preparation of 2-aryl(or alkyl)-3-hydroxytetrahydroindazoles is well known. As described nearly seventy years ago (i~ condensation of ethyl 2-oxo-cyclohexanecarboxylate with phenylhydrazine leads exclusively to 2-phenyl-3-hydroxytetrahydroindazole I. A general synthesis of the isomeric l-aryl(
UDC 547.426'729.7.04 A method has been developed for the preparation of 4-(3-hydroxy-l-alkynyl)-substituted 2-ethoxy-l,3-dioxolanes (which are novel flotation reagents for coal) based on the reaction between acetylene 1,2,5-triols and orthoformic ester in the presence of catalytic quantities of benz
The synthesis and stereochemical aspects of the aldol products, 5-methyl-3-(substituted phenyl)-5-[(substituted phenyl) hydroxy methyl]-2-thiooxazolidin-4-ones, are discussed.
LiBr-activated cyclization; natural products NMns& An improved, highly diastereoselective procedure is described for the preparation of substituted 4-hydroxy-4,Sdihydrofurans 4 which are structural elements that occur in azadirachtin and several other biologically active natural products. During our