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Synthesis of imidazopyridines from the Morita-Baylis-Hillman acetates of nitroalkenes and convenient access to Alpidem and Zolpidem.
A variety of functionalized imidazo[1,2-a]pyridines have been synthesized through a one-pot, room temperature, and reagent-free reaction between MBH acetates of nitroalkenes and 2-aminopyridines. The… Expand
Room temperature Suzuki coupling of aryl iodides, bromides, and chlorides using a heterogeneous carbon nanotube-palladium nanohybrid catalyst
Palladium nanoparticles were immobilized on multi-walled carbon nanotubes by a layer-by-layer approach, resulting in a well-defined assembly. The nanohybrid was found effective in promoting Suzuki… Expand
Carbon Nanotube–Gold Nanohybrid Catalyzed N‐Formylation of Amines by using Aqueous Formaldehyde
The N‐formylation of a variety of primary and secondary amines by using aqueous formaldehyde at room temperature in open air affords the corresponding formamides in excellent yield under the… Expand
Synthesis of Aminophenanthrenes and Benzoquinolines via Hauser-Kraus Annulation of Sulfonyl Phthalide with Rauhut-Currier Adducts of Nitroalkenes.
The Hauser-Kraus reaction of sulfonyl phthalide with nitroalkene derivatives provides access to aminophenanthrenes, including phenanthrene-substituted amino acids and benzoquinolines. The… Expand
Additions of organomanganese reagents to conjugated nitroolefins
Abstract Additions of organomanganese reagents to aromatic and aliphatic conjugated nitroolefins were examined for the first time. In most cases reaction proceeded rapidly at −30°C. Unlike Mn… Expand
The Electrochemical Behaviour of Novel Multifunctional a-Hydroxymethylated Nitroalkenes at Glassy Carbon and Wax Impregnated Carbon Paste Electrodes
The electrochemical behaviour of novel multifunctional α-hydroxymethylated nitroalkenes was studied with respect to oxidation of -OH moiety and reduction of nitro group using the cyclic voltammetric… Expand
Asymmetric Synthesis of Quaternary α‐Amino Acids and Their Phosphonate Analogues
Asymmetric synthesis of α-amino acids and their phosphonate analogues has received considerable attention due to their diverse biological activities. Quaternary α-amino acids and their phosphonate… Expand
Base-mediated reaction of the Bestmann-Ohira reagent with nitroalkenes for the regioselective synthesis of phosphonylpyrazoles.
1,3-Dipolar cycloaddition of the anion of diethyl 1-diazomethylphosphonate, generated in situ from diethyl 1-diazo-2-oxopropylphosphonate (Bestmann-Ohira reagent), with conjugated nitroalkenes… Expand
Highly selective synthesis of pyrazole and spiropyrazoline phosphonates via base-assisted reaction of the Bestmann-Ohira reagent with enones.
Novel carbonylated pyrazole phosphonates have been synthesized as single regioisomers by treating conjugated enones, dienones, tropone, and quinone with the Bestmann-Ohira reagent under KOH/EtOH… Expand
Chiral squaramide-catalyzed asymmetric synthesis of pyranones and pyranonaphthoquinones via cascade reactions of 1,3-dicarbonyls with Morita-Baylis-Hillman acetates of nitroalkenes.
- D. Nair, R. S. Menna-Barreto, E. N. da Silva Júnior, S. Mobin, I. Namboothiri
- Chemistry, Medicine
- Chemical communications
- 3 June 2014
Cascade reactions of 1,3-dicarbonyls with Morita-Baylis-Hillman acetates of nitroalkenes using a quinine derived chiral squaramide organocatalyst led to the formation of pyranones and… Expand