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Source details: Ach.Mod.Chem. 1998, 135 : 4 457-474.
Document type: Journal
CODEN: ACMCEI
Language: EN
CNR: 6101721
Abstract
The reactivity of enaminones of 2-aminoethanol and 2-aminoethanothiol towards polyelectrophilic reagents has been studied.A brief overview of our previous results with this enaminones, which allowed us to describe new synthesis of fused heterocycles, is included. In the present work, only the formation of C-C bond is a common feature of the reaction, to produce derivatives or simple heterocycles.Although no fused heterocycles were obtained, the reaction products have complex functionalization which will allow further cyclization to such a class of polyfused systems.

Reactions between Enaminones and Enones. Part 2. C versus N-Alkylation with

Cyclohex-2-enone. Structure Confirmation by Reduction of a Dienaminone

Derivative of Dehydrated Dimedone Dimer

Ibrahim Chaaban; John V. Greenhill; Mohamed Ramli

Source details: J.Chem.Soc.Perkin Trans.1 1981, 3120-3124.
Document type: Journal
CODEN: JCPRB4
Language: EN
CNR: 5625982
Abstract
Primary and secondary enaminones derived from cyclohexane-1,3-dione, dimedone, and acetylacetone react with cyclohexenone to give exclusively C- alkylated derivatives.In every case the products form carbinolamines which exist as 1-hydroxy-2-azacyclo[3.3.1]nonenes.This was confirmed in some examples by formation of an extra ring between nitrogen and oxygen.A series of dienaminones were prepared from 2-(5,5-dimethyl-3-oxocyclohex-1-enyl)-
5,5-dimethylcyclohexane-1,3-dione and one of these was reduced to give an azanonene identical with that from C-alkylation.

Скачали данный реферат: Chaadaev, Лавров, Ермил, Лероев, Маркиана, Glen, Канадцев, Анастасий.
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