A5059390529- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Catalytic C–H Functionalization Methods
- Catalytic Cross-Coupling Reactions
- Synthesis and Biological Evaluation
- Plant Molecular Biology Research
- Synthesis and Catalytic Reactions
- Catalytic Alkyne Reactions
- Synthesis and Biological Activity
- Multicomponent Synthesis of Heterocycles
- Phenothiazines and Benzothiazines Synthesis and Activities
- Plant Reproductive Biology
- Bioactive Compounds and Antitumor Agents
- Plant nutrient uptake and metabolism
- Asymmetric Hydrogenation and Catalysis
- Cyclopropane Reaction Mechanisms
- Microwave-Assisted Synthesis and Applications
- Sulfur-Based Synthesis Techniques
- Plant Stress Responses and Tolerance
- biodegradable polymer synthesis and properties
- Click Chemistry and Applications
- Organic and Inorganic Chemical Reactions
- Plant tissue culture and regeneration
- Ubiquitin and proteasome pathways
- Nanomaterials for catalytic reactions
Colorado State University
2023-2024
Umeå Plant Science Centre
2018-2024
Umeå University
2016-2024
Swedish University of Agricultural Sciences
2018-2019
Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry
2019
National Taiwan Normal University
2009-2014
Dr. Reddy's Laboratories (India)
2005-2009
Dr. Reddy's Laboratories (United States)
2009
Polyhydroxyalkanoates (PHAs) have attracted increasing interest as sustainable plastics because of their biorenewability and biodegradability in the ambient environment. However, current semicrystalline PHAs face three long-standing challenges to broad commercial implementation application: lack melt processability, mechanical brittleness, unrealized recyclability, last which is essential for achieving a circular economy. Here we report synthetic PHA platform that addresses origin thermal...
Abstract Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles permanent pore structure. Here, we present a 2D COF made up chemoresistant β-amino enone bridges Lewis-basic triazine moieties exhibits dramatic real-time response in the visible spectrum an increase bulk conductivity by two orders magnitude to...
The coupling reaction of o-iodobenzoic acid with terminal alkynes by using a catalyst system 10% Pd/C-Et3N-CuI-PPh3 has been studied in variety solvents. 3-Substituted isocoumarins were formed good yields and regioselectivity when the was performed EtOH.
A facile and rapid synthesis of isocoumarin derivatives using a copper-catalyzed tandem C–C/C–O coupling strategy from readily available substrates is described. The reactions wide range 2-iodo-N-phenyl benzamides acyclic diketones as starting materials were investigated.
A new one-pot reaction for the regioselective construction of a six-membered fused N-heterocyclic ring leading to isoquinolones under Pd/C–Cu catalysis is described.
Herein, we report transition metal-catalyzed intramolecular cyclization of o-(1-alkynyl)benzenesulfonamides to afford 3-substituted benzothiazines regioselectively via a C−N bond forming reaction and Cu-catalyzed sequential C−C formation leading the corresponding 3,4-disubstituted derivatives.
Auxin phytohormones control most aspects of plant development through a complex and interconnected signaling network. In the presence auxin, AUXIN/INDOLE-3-ACETIC ACID (AUX/IAA) transcriptional repressors are targeted for degradation by SKP1-CULLIN1-F-BOX (SCF) ubiquitin-protein ligases containing TRANSPORT INHIBITOR RESISTANT 1/AUXIN SIGNALING F-BOX (TIR1/AFB). CULLIN1-neddylation is required SCFTIR1/AFB functionality, as exemplified mutants deficient in NEDD8-activating enzyme subunit...
Within the large poly(3-hydroxyalkanoate) (PHA) family, C3 propionates are much less studied than C4 butyrates, with exception of α,α-disubstituted propionate PHAs, particularly poly(3-hydroxy-2,2-dimethylpropionate), P3H(Me)2P, due to its high melting temperature (Tm ∼ 230 °C) and crystallinity (∼76%). However, inefficient synthetic routes monomer 2,2-dimethylpropiolactone [(Me)2PL] extreme brittleness P3H(Me)2P largely hinder broad applications. Here, we introduce simple, efficient...
We describe the utility of a Pd/C-Cu mediated method in synthesis 2,5-disubstituted indoles water via coupling-cyclization strategy. Further application this methodology has been demonstrated preparation target indole derivative 7-step process key step being Pd/C-mediated coupling reaction.
Abstract A practical and efficient synthesis of triazolothiadiazepine‐1,1‐dioxide derivatives via copper‐catalyzed [3+2] cycloaddition, followed by N ‐arylation is described. The method also applicable to the indoline‐ thiophene‐fused triazolothiadiazepine 1,1‐dioxide derivatives.
Summary distribution of auxin within plant tissues is great importance for developmental plasticity, including root gravitropic growth. Auxin flow directed by the subcellular polar and dynamic relocalisation transporters such as PIN ‐ FORMED ( ) efflux carriers, which can be influenced main natural indole‐3‐acetic acid IAA ). Anthranilic AA an important early precursor previously published studies with analogues have suggested that may also regulate localisation. Using Arabidopsis thaliana a...
Regio- and stereoselective addition of alkyl Grignard reagents to pyridine-N-oxides gave C2-alkylated N-hydroxy-1,2,5,6-tetrahydropyridines trans-2,3-disubstituted in good excellent yields. These intermediates were aromatized or alternatively reduced one-pot methodologies for efficient syntheses alkylpyridines piperidines, respectively. reactions have a broad substrate scope short reaction times.
Abstract Apical hook development is an ideal model for studying differential growth in plants, and controlled by complex hormonal crosstalk, with auxin ethylene being the major players. Here, we identified a bioactive small molecule that decelerates apical opening Arabidopsis thaliana . Our genetic studies suggest this enhances or maintains maximum found inner side requires certain signaling components to modulate opening. Using biochemical approaches, then revealed WD40 repeat scaffold...
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Abstract An efficient synthesis of 4‐iodo‐thieno[3,2‐e]thiazines (II) via intramolecular iodocyclization is described.