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Nucleophilic Addition Reactions (nucleophilic + addition_reaction)

Distribution by Scientific Domains
Chemistry71%

Selected Abstracts

ChemInform Abstract: Catalytic Nucleophilic Addition Reaction to (2-Furyl)carbene Intermediates Generated from Carbonyl,Ene,Ynes.

CHEMINFORM, Issue 3 2009
Koji Miki
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

Molecular Iodine Catalyzed Imine Activation for Three-Component Nucleophilic Addition Reactions.

CHEMINFORM, Issue 41 2005
Byoung Se Lee
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

The Chemistry of Tetrafluoroallene: Nucleophilic Addition Reactions with Phenols and Amines.

CHEMINFORM, Issue 6 2004
Ji-Chang Xiao
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Acid,Base Bifunctional Catalytic Surfaces for Nucleophilic Addition Reactions

CHEMISTRY - AN ASIAN JOURNAL, Issue 8-9 2008
Ken Motokura Dr.
Abstract This article illustrates the modification of oxide surfaces with organic amine functional groups to create acid,base bifunctional catalysts, summarizing our previous reports and also presenting new data. Immobilization of organic amines as bases on inorganic solid,acid surfaces afforded highly active acid,base bifunctional catalysts, which enabled various organic transformations including CC coupling reactions, though these reactions did not proceed with either the homogeneous amine precursors or the acidic supports alone. Spectroscopic characterization, such as by solid-state MAS NMR and FTIR, revealed not only the interactions between acidic and basic sites but also bifunctional catalytic reaction mechanisms. [source]

Polysubstituted 5-Functionalized 2-Pyrone Derivatives: Facile Synthesis via Tandem Nucleophilic Addition/Lactonization Reaction of 1,2-Allenyl Esters.

CHEMINFORM, Issue 51 2006
Xian Huang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

Multistimuli responsive micelles based on well-defined amphiphilic comb poly(ether amine) (acPEA)

JOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 15 2010
Chunfeng Di
Abstract A series of well-defined amphiphilic comb poly (ether amine)s (acPEAs) were successfully synthesized through nucleophilic addition/ring-opening reaction of commercial available poly(propylene glycol) (PPO) diglycidyl ether and Jeffamine L100, followed by esterification of hydroxyl groups in backbone by alkyl carboxylic acid with different chain length. acPEAs are comprised of hydrophilic short PEO chains and hydrophobic alkyl chains as comb chains, which are grafted on PPO backbone alternately to form well-defined structure. With the very low critical micelle concentration (CMC) of around 3.0 × 10,3 g/L, the obtained acPEAs can self-assemble into stable nanomicelles, whose aggregation is responsive to temperature, pH, and ionic strength with tunable cloud point (CP). The CP of acPEAs' aqueous solution increases with the decrease of the length of graft alkyl chains, the decrease of pH value, and the decrease of ionic strength. A transition behavior in the responsive aggregation of micelles formed by acPEA8 and acPEA10 in aqueous solution, especially at low pH value (<7.0), was observed, which was also revealed by DLS results. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 3468,3475, 2010 [source]

Poly(ether tert -amine): A novel family of multiresponsive polymer

JOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 5 2009
Yanrong Ren
Abstract A novel multiresponsive poly(ether tert -amine) (PEA) was synthesized by nucleophilic addition/ring-opening reaction of commercial poly(ethylene oxide) (PEO), poly(propylene oxide) (PPO), and di-epoxy and di-amine monomer. The process of synthesis was very simple and green in ethanol as reactive media. These PEAs exhibit sharp response to temperature, pH, and ionic strength, with adjustable and sharp phase transitions in the range of 27,100 °C. The lower critical solution temperature (LCST) of PEA's aqueous solution presents a linear relationship to the PEO content (y = 35.7 + x), indicating well-tunable LCST. The concentration of PEA has no obvious effect on LCST. Therefore, PEA will be potential in applications of drug delivery, separation, and biotechnology. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1292,1297, 2009 [source]