A5044933623- Agricultural pest management studies
- Insect-Plant Interactions and Control
- Genetic and Environmental Crop Studies
- Insect Pest Control Strategies
- Asymmetric Synthesis and Catalysis
- Agricultural Practices and Plant Genetics
- Agricultural Economics and Practices
- Insect Resistance and Genetics
- Synthetic Organic Chemistry Methods
- Rice Cultivation and Yield Improvement
- Agricultural Research and Practices
- Crystallization and Solubility Studies
- Peanut Plant Research Studies
- Carbohydrate Chemistry and Synthesis
- X-ray Diffraction in Crystallography
- Cancer therapeutics and mechanisms
- Bioactive Compounds and Antitumor Agents
- Genetics and Plant Breeding
- Traditional and Medicinal Uses of Annonaceae
- Agricultural Science and Fertilization
- Plant Virus Research Studies
- Synthesis and Characterization of Pyrroles
- Synthesis and Biological Activity
- GABA and Rice Research
- Oxidative Organic Chemistry Reactions
Midnapore Medical College and Hospital
2021-2023
Bidhan Chandra Krishi Viswavidyalaya
2004-2021
Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI)
2021
A.E. Favorsky Irkutsk Institute of Chemistry
2021
Beijing University of Chemical Technology
2021
Kwangshin University
2009-2011
Sungkyunkwan University
2009-2010
Chungnam National University
2010
Korea Basic Science Institute
2010
Indian Institute of Technology Kharagpur
1995-2007
A catalytic route toward chiral Morita-Baylis-Hillman esters by asymmetric coupling between alpha,beta-acetylenic esters, aldehydes, and trimethylsilyl iodide has been developed (see scheme). The reaction proceeds with high to excellent enantioselectivities, the products can be transformed into beta-branched derivatives in a single step retention of configuration. TMS = trimethylsilyl.
A cationic oxazaborolidinium-catalyzed asymmetric Mukaiyama aldol reaction of (1-methoxy-2-methyl-propenyloxy)-trimethylsilane with various aldehydes including α,β-disubstituted acroleins has been developed in high yields and enantioselectivities. The synthetic utility this methodology was demonstrated the first short synthesis naturally occurring inthomycin C enantiopurity.
The anionic [4+2] cycloaddition of furoindolones with arynes and quinol ethers is introduced as an efficient strategy for the synthesis indoloquinones. utility exemplified by a very short elipticine.
This review focuses on an overview of recent advances in the synthesis furanosteroids and illustrates their applications medicinal chemistry over period 2005–present.
Abstract Die katalytische asymmetrische Kupplung von α,β‐acetylenischen Estern mit Aldehyden und Trimethylsilyliodid führt zu chiralen Morita‐Baylis‐Hillman‐Estern (siehe Schema, TMS=Trimethylsilyl). Reaktion verläuft äußerst enantioselektiv, die Produkte lassen sich unter Erhaltung der Konfiguration in einem einzigen Schritt β‐verzweigte Derivate umwandeln. magnified image
SUMMARY Rice tungro disease (RTD), caused by the simultaneous infection of rice bacilliform virus (RTBV) and spherical (RTSV), is one major threats to sustainable production in South Southeast Asia. Transgenic resistance against RTBV has been reported previously using an RNA interference (RNAi) construct ( ORF IV RTBV, placed both sense anti-sense orientation under CaMV 35S promoter), scented line Pusa Basmati-1 (PB-1). This was transferred two high-yielding tungro-susceptible indica...
Genetic variances were estimated for grain yield and quality characters in rice (Oryza sativa L.) by full-sib half- sib analysis 20 F1 hybrids produced from crosses between five high yielding genotypes namely IR 50, 62, IET 5656, 8002 6441 as lines four Basmati 385, Dudheswar, Kalonunia Sambamahsuri testers. The significantly varying the characters, whereas due to testers significant all except panicle weight. Line × tester interaction was highly characters. Combining ability revealed...
Herein, we report a rare pentacyclic N-fused hetrocycle synthesis via palladium catalyzed intramolecular C−H arylation along with the brief synthetic study of new type bicyclic/tricyclic pyrrole rings. This rings provided diversely substituted polycyclic nitrogen fused heterocycles from N-benzyl/N-benzyloxy pyrroles good to excellent yields.
Journal Article Biology of the Mustard Aphid, Lipaphis erysimi, in India Get access G. Rout, Rout Orissa University Agriculture and Technology, Bhubaneswar-3, Search for other works by this author on: Oxford Academic Google Scholar B. Senapati Annals Entomological Society America, Volume 61, Issue 2, 15 March 1968, Pages 259–261, https://doi.org/10.1093/aesa/61.2.259 Published: 1968 history Accepted: 20 February 1967
In the present work, Diels-Alder reaction of cyclopentadiene with ethylacrylate has been carried out by using two types mesoporous solid acid catalysts (Al-MCM-41, Al-MCM-48) different pore structures. The specific topology Al-MCM-48 (cubic Ia3d structure composed independent 3-D channel systems) exhibit higher activity and stereo-control than those Al-MCM-41 (hexagonal packing 1-D channels). physical properties catalyst, such as high accessibility reactants to sites, spatial confinement in...
The preparation of several functionalized furan derivatives and attempts to transform them into a derivative containing 6H-furo[3,4-b]furanone skeleton towards the construction naphtho[2,3-b] are described. Attempted Pummerer reaction sulfoxide produced four interesting derivatives. Base promoted annulation between methyl 2-(phenylsulfinylmethyl)-3-furoate 2-cyclohexenone proceeded give dihydro naphtho[2,3-b]furanone in regiospecific manner.