79817-66-6Relevant academic research and scientific papers
Palladium-catalyzed intramolecular α-arylation of aliphatic ketone, formyl, and nitro groups
Muratake, Hideaki,Natsume, Mitsutaka,Nakai, Hiroshi
, p. 11783 - 11803 (2007/10/03)
Intramolecular arylation of properly designed substrates bearing a ketone, formyl, or nitro terminating group was achieved by use of a PdCl 2(Ph3P)2-Cs2CO3 reaction system to form a variety of carbocyclic compounds. Arylation in ketone compounds afforded benzene-annulated bridged or spirocycloalkanone derivatives, depending on the structure of the cyclization precursors. Arylation in formyl compounds occurred at the α-position (α-arylation) or at the carbonyl carbon (carbonyl-arylation) depending on the structure of the cyclization precursors and on the reaction solvent. An α-arylated secondary nitro group was partially transformed to ketone in the manner of the Nef reaction, whereas a tertiary nitro group was partially eliminated to afford a styrene-type olefin. Graphical Abstract
Synthesis by the S(RN)1 reaction of a new series of imidazo[1,2-a]pyridine derivatives with pharmacological potentialities
Vanelle,Madadi,Roubaud,Maldonado,Crozet
, p. 5173 - 5184 (2007/10/02)
The study of S(RN)1 reaction between 2-chloromethyl-3-nitroimidazo[1,2-a] pyridine and 2-nitropropane salts has been extended to various aliphatic, cyclic and heterocyclic nitronate anions. From C-alkylation products, base-promoted nitrous acid elimination afforded new potential pharmacological derivatives with a trisubstituted double bond at the 2 position.
S(RN)1 synthesis of new 5-nitroimidazoles highly active against protozoa and anaerobes
Vanelle,Crozet,Maldonado,Barreau
, p. 167 - 178 (2007/10/02)
1-Methyl-2-chloromethyl-5-nitroimidazole reacts by an S(RN)1 mechanism with various aliphatic, cyclic or heterocyclic nitronate anions to afford, in high yields, new 5-nitroimidazoles bearing a trisubstituted ethylenic double bond at the 2 position. Some of these compounds are as active as metronidazole in vitro and in vivo against protozoa and anaerobic bacteria. Structure-activity relationships are discussed.
1,2,3,4-Tetrahydronaphthalene derivatives
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, (2008/06/13)
New compounds of the formula: STR1 wherein R1 represents a hydrogen atom or an alkanoyl group containing from 1 to 4 carbon atoms, R2 and R3 each represent a hydrogen atom or a C1 -C4 alkyl group, and R4 represents a hydroxy or methoxy group in the 6-position or 7-position, have been found to be useful in therapy, and more particularly in the treatment of cardiovascular diseases and Parkinson's disease.
