Dissertation > Excellent graduate degree dissertation topics show

Pd Nanoparticles-catalyzed Stereospecific Allyl-Aryl Coupling Reactions

Author: ZhaoJingMing
Tutor: ZhangYongJian
School: Shanghai Jiaotong University
Course: Chemistry
Keywords: Pd nanoparticles stereospecific allyl-aryl coupling water ambient conditions 1,5-diene
CLC: O643.32
Type: Master's thesis
Year: 2013
Downloads: 12
Quote: 0
Read: Download Dissertation

Abstract


Pd nanoparticles catalyzed Suzuki-Miyaura cross coupling reactionin water has been reported by many groups through both homogenousand heterogenous catalysis. This reaction is one of the most influentialsynthetic methods for preparing biaryl compounds. However, few reportsin Suzuki-Miyaura cross coupling focus on synthesizing allyl-arylcompounds catalyzed by Pd nanoparticles in water.We first present the practical and greener process for thestereospecific cross coupling of secondary allylic carbonates witharylboronic acids. In the reaction the catalyst turn into Pd nanoparticleswithout any ligands or additional stabilizer in water, accomplishingallyl-aryl coupling compounds in high isolated yields with completechemo-, regio-, E/Z selectivities and excellent stereospecifities. The insitu generated Pd nanopariticles showed extraordinary catalytic activity(s/c up to5000) even for the allyl-aryl coupling reaction of easilyeliminated allylic carbonates in water at room temperature. We apply thismethodology in the asymmetric synthesis of1,5-diene. Our studies effectively extend the scope of Pd nanoparticlescatalyzed Suzuki-Miyaura coupling reactions in water and provide agreen protocol for stereospecific allyl-aryl coupling..

Related Dissertations

  1. Biosynthesis of Amorpha-4, 11-diene, a Precursor of the Antimalarial Agent Artemisinin, in Escherichia Coli Through Introducing MVA Pathway,TQ463
  2. Studying Fragmentation of Aromatic Ligand and Transition-Metal Compounds Using Mass Spectrometry,O641.4
  3. Preparation and Catalysis of Supported Palladium Nanoparticles Catalyst for Hydrogenation of 2-tertiary Butyl Anthraquinone to Produce H2O2,TQ123.6
  4. Nano- Pd catalytic oxidation of formic acid,O643.32
  5. A Study on Application of Microencapsulated Red Phosphorus Flame Retardant in Epdm Compounds and Their Foaming Products,TQ330.1
  6. Synthetic Methodologies of Functionalized Alkenes, 1,3-dienes and Conjugated Enynes,O623.12
  7. Preparation of a polypropylene car Bumper,TQ325.14
  8. Screening, Isolation, Structure Elucidation of Natural Sources Nuroactive Components,R284
  9. Theory on Styrene Waste Water Purification by Electrospinning EPDM Ultra-fine Fiber Composite Membrane,X703
  10. Studies on Blending and Foming Properties of CM/EPDM Blend,TB332
  11. Study on Synthesis and UV Curing Reaction of Nopadiene,O621.3
  12. Preparation and Characterization of the Carpet Tile Backing,TS935.7
  13. Preparation of Palladium Nanoparticles/polymer Microspheres and Their Catalytic Property,O631.3
  14. Chiral diene ligands in the rhodium metal catalyzed asymmetric reactions,R284
  15. Asymmetric Vinylogous Aldol Reaction by Combind Lewis Acid Catalyst,O643.32
  16. ADMET Polymerization of Diene Ionomer with POSS Pendant Group and the Properties of the Polymer,O631.3
  17. Extraction and Isolation of the Chemical Constituents of the Seed of Schisandra Propinqua (Wall)Hook.f.et Thoms.,TQ461
  18. Investigation in the Synthesis of Antiasthma Drug-22R Ciclesonide,R914
  19. Study of Morphology and Properties of PP/EPDM/Nano-CaCO3 Ternary Composites,TB332
  20. Applications of (E)-1,2-disubstituted Vinylstannanes in Stereoseletive Synthesis of Trisubstituted Alkenes and 1, 3-dienes,O621.2
  21. Selective hydrogenation of pyrolysis gasoline Nickel Catalysts,O643.36

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic > Catalytic reaction
© 2012 www.DissertationTopic.Net  Mobile