• No se han encontrado resultados

Synthesis of Organic Compounds

The origin of life

The origin of life

... feature of nature has been widespread since the nineteenth ...origin of life from pure speculation into workable and testable research models were proposals, suggested independently, in the 1920s by ...

50

Synthesis, characterization, determination of luminescent properties of tetracoordinate organoboron compounds derivatives from organic tridentate ligands, and their potential application in OLEDs

Synthesis, characterization, determination of luminescent properties of tetracoordinate organoboron compounds derivatives from organic tridentate ligands, and their potential application in OLEDs

... emission of electromagnetic radiation from an electronically excited material, which is not in thermal equilibrium with the ...Depending of the way that energy is applied, it is going to give different ...

131

One pot solvothermal synthesis of organic acid coated magnetic iron oxide nanoparticles

One pot solvothermal synthesis of organic acid coated magnetic iron oxide nanoparticles

... include organic solvent heating method, polyol method, and co-precipitation method ...biological compounds have been used as surface coatings to prevent the aggregation of the NPs, for control size ...

5

4. SYNTHESIS OF ALKENES: CLAISEN REARRANGEMENT OF ALLYL
      VINYL ETHERS, PART I; MECHANISTIC VIEWS; THE ORGANIC
    CHEMISTRY NOTEBOOK SERIES, A DIDACTICAL APPROACH, Nº 9.

4. SYNTHESIS OF ALKENES: CLAISEN REARRANGEMENT OF ALLYL VINYL ETHERS, PART I; MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY NOTEBOOK SERIES, A DIDACTICAL APPROACH, Nº 9.

... For compounds containing functional groups susceptible to pirolysis or acid, it is feasible the transformation of lithium enolates via Claisen rearrangement to form γδ-unsaturated acids ...use of ...

7

3. SYNTHESIS OF ALKENES BY FRAGMENTATION REACTIONS;
      MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY NOTEBOOK
      SERIES, A DIDACTICAL APPROACH, Nº 5.

3. SYNTHESIS OF ALKENES BY FRAGMENTATION REACTIONS; MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY NOTEBOOK SERIES, A DIDACTICAL APPROACH, Nº 5.

... generation of acyclic alkenes using cyclic compounds as ...definition of the geometry of alkene can be derived from the stereochemistry in the cyclic precursor ...the synthesis ...

8

Encapsulation of compounds biphenyls into  SBA-15: synthesis of composites for application

Encapsulation of compounds biphenyls into SBA-15: synthesis of composites for application

... study of molecular diameters of BVA and BEG calculated by DFT were calculated to demonstrate the size of each ...structure of SBA-15 can be maintained after the inclusion of the BVA and ...

8

1. OBTAINING OF ALKENES BY
  REDUCTIVE COUPLING OF
  CARBONYLIC COMPOUNDS;
  SYNTHESIS OF Z,E-6-DODECENE,
  SYNTHESES OF FLEXIBILENE AND
  ISOCARYOPHYLLENE,
  MECHANISTIC VIEWS; THE ORGANIC
  CHEMISTRY NOTEBOOK, Nº 14.

1. OBTAINING OF ALKENES BY REDUCTIVE COUPLING OF CARBONYLIC COMPOUNDS; SYNTHESIS OF Z,E-6-DODECENE, SYNTHESES OF FLEXIBILENE AND ISOCARYOPHYLLENE, MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY NOTEBOOK, Nº 14.

... OBTAINING OF ALKENES BY REDUCTIVE COUPLING OF CARBONYLIC COMPOUNDS; SYNTHESIS OF Z,E-6-DODECENE, SYNTHESES OF FLEXIBILENE AND ISOCARYOPHYLLENE, MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY N[r] ...

12

TítuloImproving odour management and abatement performance using Olfactory GC MS

TítuloImproving odour management and abatement performance using Olfactory GC MS

... measurement of odorous emissions is usually assessed either as odour concentrations (OC) by dilution olfactometry or by the chemical analysis of the odorous compounds such as hydrogen sulphide or the ...

14

3. SYNTHESIS OF ALKENES FROM KETONES VIA ARYLSULPHONYLHYDRAZONES; MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY
      NOTEBOOK SERIES, A DIDACTICAL APPROACH, Nº 7.

3. SYNTHESIS OF ALKENES FROM KETONES VIA ARYLSULPHONYLHYDRAZONES; MECHANISTIC VIEWS; THE ORGANIC CHEMISTRY NOTEBOOK SERIES, A DIDACTICAL APPROACH, Nº 7.

... This can be achieved by using sodium cyanoborohydride in acid [7]. An alternative to the Wolf-Kishner deoxygenation is the using of catecholborane [7]. When the hydrazones derivatives are αβ-unsaturated, it is ...

8

SYNTHESIS AND CHARACTERIZATION OF ALPHA ALUMINA PLATELETS AND ACICULAR MULLITE IN MgO Al2O3 SiO2 SYSTEM

SYNTHESIS AND CHARACTERIZATION OF ALPHA ALUMINA PLATELETS AND ACICULAR MULLITE IN MgO Al2O3 SiO2 SYSTEM

... details of the samples were studied by SEM as shown in ...micrographs of samples at ...crystallization of the α-alumina occurs with the increment of temperature up to ...dissolution of ...

21

TítuloEffect of phenol on the biological treatment of wastewaters from a resin producing industry

TítuloEffect of phenol on the biological treatment of wastewaters from a resin producing industry

... presence of organic matter and nitrogen ...treatment of these wastewaters requires a combined process for carbon and nitrogen ...need of an external carbon source, which is important from an ...

12

Experimental data on SOA formation from mixtures of anthropogenic and biogenic organic compounds

Experimental data on SOA formation from mixtures of anthropogenic and biogenic organic compounds

... processes of different VOCs have been studied in depth in ...study of chemical reactions under controlled conditions, and thus constitute a very useful tool to investigate how specific processes involved in ...

15

Gold(I) Catalyzed Tandem Cyclization–Selective Migration Reaction of 1,3 Dien 5 ynes: Regioselective Synthesis of Highly Substituted Benzenes

Gold(I) Catalyzed Tandem Cyclization–Selective Migration Reaction of 1,3 Dien 5 ynes: Regioselective Synthesis of Highly Substituted Benzenes

... cycloaromatization of 1,3- hexadien-5-ynes to benzene derivatives (the “dihydro variant“ of the Bergman cyclization also known as Hopf cyclization) usually proceeds at temperatures above 200 ºC, 7 their ...

5

Solubility of bioinsecticides in supercritical CO2. Experimental measurement and modeling with the GC-EOS.

Solubility of bioinsecticides in supercritical CO2. Experimental measurement and modeling with the GC-EOS.

... behavior of volatile compounds can be observed, with solubility in the supercritical phase increasing with pressure at a given ...predictions of the solubility behavior, with average relative ...

28

Synthesis and pharmacology of alkanediguanidinium compounds that block the neuronal nicotinic acetylcholine receptor

Synthesis and pharmacology of alkanediguanidinium compounds that block the neuronal nicotinic acetylcholine receptor

... Figure 3A shows the 45Ca2+ taken up by unstimulated cells basal and by chromaffin cells stimulated with DMPP 100 laM for 60 s or high K + 70 mM for 60 s, in the absence and presence of 1[r] ...

7

A Practical, One Pot Synthesis of Highly Substituted Thiophenes and Benzo[b]thiophenes from Bromoenynes and o Alkynylbromobenzenes

A Practical, One Pot Synthesis of Highly Substituted Thiophenes and Benzo[b]thiophenes from Bromoenynes and o Alkynylbromobenzenes

... employment of sodium sulphide in NMP as solvent at high temperature, following the procedure described by Takimiya and ...cleavage of the corresponding O-protecting group, 15 whereas the expected ...

5

TítuloThe influence of plant density on the removal efficiency of volatile organic compounds in indoor air using a biological filter

TítuloThe influence of plant density on the removal efficiency of volatile organic compounds in indoor air using a biological filter

... parameters of the indoor air biofilter system must be ...efficiency of an indoor air biofilter is directly related to a plant microbe ...diversity of the degrading microbial community. Some of ...

6

Catalytic Intermolecular Hetero Dehydro Diels–Alder Cycloadditions: Regio  and Diasteroselective Synthesis of 5,6 Dihydropyridin 2 ones

Catalytic Intermolecular Hetero Dehydro Diels–Alder Cycloadditions: Regio and Diasteroselective Synthesis of 5,6 Dihydropyridin 2 ones

... For an insight comprised of a series of commentaries and reviews, see: Small Molecule Catalysis (Eds.: Mitchinson, A.; Finkelstein, J.) in Nature 2008, 455, 303-349. For recent reviews on bio-catalysis, ...

5

A new supervised learning algorithm inspired on chemical organic compounds

A new supervised learning algorithm inspired on chemical organic compounds

... As introduced earlier, this work uses inspiration from chemical organic compounds to propose a new class of computational learning algorithms that solves suitable modeling problems in th[r] ...

194

Straightforward Synthesis of Dihydrobenzo[a]fluorenes through Au(I) Catalyzed Formal [3 + 3] Cycloadditions

Straightforward Synthesis of Dihydrobenzo[a]fluorenes through Au(I) Catalyzed Formal [3 + 3] Cycloadditions

... cycloaddition of o- (alkynyl)styrenes bearing a secondary alkyl group at the -position of the styrene ...heating of the reaction mixture under gold(I) or Brønsted acid-catalysis, or directly by ...

5

Show all 10000 documents...

Related subjects