A5020513639- Inorganic and Organometallic Chemistry
- Catalytic C–H Functionalization Methods
- Sulfur-Based Synthesis Techniques
- Chemical Synthesis and Reactions
- Radical Photochemical Reactions
- Asymmetric Synthesis and Catalysis
- Synthesis of heterocyclic compounds
- Synthesis and Catalytic Reactions
- Cyclopropane Reaction Mechanisms
- Synthesis and characterization of novel inorganic/organometallic compounds
- Organic Chemistry Cycloaddition Reactions
- Synthesis and Reactions of Organic Compounds
- Quinazolinone synthesis and applications
- Coordination Chemistry and Organometallics
- Ferrocene Chemistry and Applications
- Chemical synthesis and alkaloids
- Synthesis and Characterization of Heterocyclic Compounds
- Oxidative Organic Chemistry Reactions
- Catalytic Alkyne Reactions
- Chemical Synthesis and Analysis
- Phenothiazines and Benzothiazines Synthesis and Activities
- Carbohydrate Chemistry and Synthesis
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Inorganic Fluorides and Related Compounds
North East Institute of Science and Technology
2016-2025
Academy of Scientific and Innovative Research
2017-2025
A Pd(II)-catalyzed cascade annulation of 4-hydroxy-3-maleimidecoumarin with alkynes has been demonstrated. This unique strategy highlights an interesting process for the formation three rings (three-, five-, and six-membered) carbocycles heterocycles through spiro-annulation followed by cyclization. offers attractive platform synthesizing various coumarin-fused complex structures in good yields. Additionally, six synthesized compounds have unambiguously confirmed single-crystal X-ray...
A Pd(II)-catalyzed oxidative annulation reaction of 4-hydroxycoumarin and arylcarboxylic acid via double C-H bond activations has been accomplished for the synthesis bis-coumarins. This synthetic strategy provides a wide range structurally diversified bis-coumarins in moderate to good yields with variety functional group compatibility. Moreover, photophysical properties synthesized have evaluated, which reveals their interesting fluorescent properties.
A synthetic strategy for pyrrolo[3,4-<italic>c</italic>]quinoline-1,3-diones<italic>via</italic>oxidative annulation followed by DDQ mediated dehydrogenation and<italic>N</italic>-demethylation.
A synthetic strategy has been developed for the synthesis of 1-azaanthraquinones. This protocol consists sequential Pd-catalyzed carbon-nitrogen bond formation followed by Lewis acid catalyzed intramolecular cyclization. The aminated intermediate was isolated and characterized. reactions provides a wide range 1-azaanthraquinones with good yields.
A metal-free cascade reaction strategy has been developed for the synthesis of novel polycyclic 2-formylthiophenes from β-halo-α,β-unsaturated aldehydes and 1,4-dithiane-2,5-diols. recyclable polymer supported organic base was used to perform process. This synthetic protocol applied synthesize several thiophenes including steroidal D-ring annelated thiophene. Our provides a high yield thiophenes, avoids tedious work-up procedure minimizes formation waste.
A Pd(<sc>ii</sc>)-catalyzed oxidative alkenylation of 4-hydroxycoumarins with maleimides has been developed for the direct synthesis novel 4-hydroxy-3-maleimidecoumarins without prefunctionalization.
Abstract CeO 2 has been used as heterogeneous catalyst for carbon‐carbon bond formation via cross‐dehydrogenative coupling (CDC). It works efficiently oxidative C−C between N ‐aryltetrahydroisoquinoline derivatives and a carbon nucleophile nitroalkane acetone under aerobic conditions. This is the first report of low temperature reaction two sp3 C−H bonds.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPyrimidobenzothiazine Derivatives. II. The Condensation of Isothiocyano Ketones and Aryl AminesK. K. Sharma, N. Ralhan, S. NarangCite this: J. Org. Chem. 1963, 28, 3, 740–742Publication Date (Print):March 1, 1963Publication History Published online1 May 2002Published inissue 1 March 1963https://pubs.acs.org/doi/10.1021/jo01038a035https://doi.org/10.1021/jo01038a035research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract Triphenylzinnchlorid bildet mit Pyridin, β‐ und γ‐Picolin sowie Morpholin Additionsverbindungen im Molverhältnis 1:2, Isochinolin, Piperidin Benzylamin Verhältnis 1 :l. Diphenylzinndichlorid ergibt α‐, γ‐Picolin, l:4‐Komplexe Anilin 1:2‐Addukte.
Abstract Die o‐ bzw. m‐Halogenjodbenzole (I) reagieren mit Tripheny‐1‐ Trialkylzinnchlorid (II) in ätherischer Lösung bei Zugabe einer äquimolaren Menge Magnesium über die Grignardstufe zu den Halogenphenyl‐zinnderivaten (III).
Abstract Es werden die Komplexe (I) aus Phenylzinntrichlorid mit Pyridin, β‐ und γ‐ Picolin, Isochinolin, Piperidin, Morpholin, Anilin Benzylamin dargestellt ihre IR‐Spektren (4 000‐250 cm ‐1 ) sowie Leitfähigkeit in Nitrobenzollösung untersucht.