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Articles 271 - 300 of 366

Full-Text Articles in Chemistry

Unusual Alkylations Of The 1,1-Diphenyl-2-Propanone Dianion, Ruth E. Tenbrink Apr 1977

Unusual Alkylations Of The 1,1-Diphenyl-2-Propanone Dianion, Ruth E. Tenbrink

Masters Theses

No abstract provided.


The Synthesis And Study Of The Enolate Monoanion Of 2, 4-Di-P-Anisylbicyclo(3.2.1)Oct-6-En-3-One, Phillip D. Reynhout Apr 1977

The Synthesis And Study Of The Enolate Monoanion Of 2, 4-Di-P-Anisylbicyclo(3.2.1)Oct-6-En-3-One, Phillip D. Reynhout

Masters Theses

No abstract provided.


The Synthesis And Physical Properties Of Some 1-Methyl And 2-Methyl Bridged Cycloheptapyrazolones, Gary R. Larson Apr 1977

The Synthesis And Physical Properties Of Some 1-Methyl And 2-Methyl Bridged Cycloheptapyrazolones, Gary R. Larson

Masters Theses

No abstract provided.


The Effect Of Stabilizing Groups On The Extent Of Long-Range Π Electron Participation And The Effect Of The Negative Charge On The Chemical Shift Of Neighboring Protons In Carbanions, Atilla Tuncay Aug 1976

The Effect Of Stabilizing Groups On The Extent Of Long-Range Π Electron Participation And The Effect Of The Negative Charge On The Chemical Shift Of Neighboring Protons In Carbanions, Atilla Tuncay

Dissertations

No abstract provided.


A Study Of Selected Variables For Prediction Of Success And Placement In General Chemistry At Western Michigan University, Stephen M. Yekeson Dec 1975

A Study Of Selected Variables For Prediction Of Success And Placement In General Chemistry At Western Michigan University, Stephen M. Yekeson

Dissertations

Chapter I

The Problem

Introduction

The traditional philosophy that a college-or a university is an exclusive institution in which only highly selected individuals receive a concentrated training in the traditional liberal arts no longer exists. In America, for instance, as early as 1870, Harvard, the colonial college with a narrow curriculum, was transformed rather rapidly into a modern university with many new subjects and the elective system (Garrett, 1949). Also, since 1642, when the first entrance requirements were instituted for American higher education, a continuing debate has developed over what constitutes a sound curriculum for education. There are those who …


A Stereochemical Study Of Some 2,2'-Bridged Biphenyls, Alan J. Quarfoot Aug 1975

A Stereochemical Study Of Some 2,2'-Bridged Biphenyls, Alan J. Quarfoot

Dissertations

No abstract provided.


Kinetics Of The Thermal Decomposition Of Pyridine, Tesfaye Biftu Aug 1975

Kinetics Of The Thermal Decomposition Of Pyridine, Tesfaye Biftu

Masters Theses

No abstract provided.


Spectroscopic Studies Of The Hydrogen-Chlorine Flame, Gonzalo Pizarro Aug 1975

Spectroscopic Studies Of The Hydrogen-Chlorine Flame, Gonzalo Pizarro

Masters Theses

No abstract provided.


Synthesis And Analysis Of Dimers Of Alpha-Methylstyrene, Bhadreshkumar J. Mehta Aug 1975

Synthesis And Analysis Of Dimers Of Alpha-Methylstyrene, Bhadreshkumar J. Mehta

Masters Theses

Introduction

The heat of polymerization ∆Hp, of Alpha-methylstyrene (AMS) has been a source of study for many years. The structure of AMS is shown in Figure 1.

Roberts and Jessup carried out the first quantitative work to determine ∆Hp if AMS.1 Their data displayed a ∆Hp dependence on the degree of polymerization, DP. Several other reports were also published with new values for ∆Hp and new explanations for the apparent DP dependence.2, 3, 4, 5.

Samples of dimers of AMS have been prepared by various workers.6, 7, 8 The reactions were mostly carried out by using sulfuric …


Asymmetric Induction In Grignard Reactions In A Chiral Solvent, John E. Davis Dec 1974

Asymmetric Induction In Grignard Reactions In A Chiral Solvent, John E. Davis

Dissertations

No abstract provided.


The Effect Of Sheet Moisture On The Anisotropy Of Paper Subjected To Various Degrees Of Restraint During Drying, Ivan T. Mascarenhas Aug 1974

The Effect Of Sheet Moisture On The Anisotropy Of Paper Subjected To Various Degrees Of Restraint During Drying, Ivan T. Mascarenhas

Masters Theses

No abstract provided.


Ortho-Substituent Effects On Reactivities Of Benzohydroxamic Acids, Irl E. Ward Apr 1974

Ortho-Substituent Effects On Reactivities Of Benzohydroxamic Acids, Irl E. Ward

Masters Theses

No abstract provided.


The Synthesis And Reactions Of Some Α, Β-Unsaturated Diazoketones, Virendra K. Sood Dec 1973

The Synthesis And Reactions Of Some Α, Β-Unsaturated Diazoketones, Virendra K. Sood

Masters Theses

No abstract provided.


Kinetics Of The Metal Exchange Reaction Between N, N'-Bis (2-Picolyl) Ethylenediaminenickel (Ii) And Copper (Ii), Craig Lee Barsuhn Dec 1973

Kinetics Of The Metal Exchange Reaction Between N, N'-Bis (2-Picolyl) Ethylenediaminenickel (Ii) And Copper (Ii), Craig Lee Barsuhn

Masters Theses

No abstract provided.


Rate Of Initiation Of Pyrolysis Of Pentachloroethane Using The Toluene Carrier Gas Technique, Teodomiro Cuzcano Dec 1973

Rate Of Initiation Of Pyrolysis Of Pentachloroethane Using The Toluene Carrier Gas Technique, Teodomiro Cuzcano

Masters Theses

No abstract provided.


The Effect Of The Degree Of Cationic Charge On The Binding Strength Of A Cationic Starch-Kaolin Clay Coating, Hugh K. Myers Dec 1973

The Effect Of The Degree Of Cationic Charge On The Binding Strength Of A Cationic Starch-Kaolin Clay Coating, Hugh K. Myers

Masters Theses

No abstract provided.


The Kinetics Of The Metal Exchange Reaction Between Biseminodiacetatonickelate (Ii) And Copper (Ii), Stephen H. Erickson Dec 1973

The Kinetics Of The Metal Exchange Reaction Between Biseminodiacetatonickelate (Ii) And Copper (Ii), Stephen H. Erickson

Masters Theses

No abstract provided.


Triplet-Triplet Energy Transfer In Indolylketones, Larry E. Hewitt Aug 1973

Triplet-Triplet Energy Transfer In Indolylketones, Larry E. Hewitt

Dissertations

No abstract provided.


Simultaneous Knudsen- And Torsion-Effusion Measurements Of The Vapor Pressures Of Tetraphenyl Silane And Hexaphenyl Disilane, Luz Marina Calle Aug 1973

Simultaneous Knudsen- And Torsion-Effusion Measurements Of The Vapor Pressures Of Tetraphenyl Silane And Hexaphenyl Disilane, Luz Marina Calle

Masters Theses

No abstract provided.


The Effect Of Stereoelectronic Control And Long Range Interaction On The Stability Of Bicyclic Enolate Anions, Edwin M. Van Dam Dec 1972

The Effect Of Stereoelectronic Control And Long Range Interaction On The Stability Of Bicyclic Enolate Anions, Edwin M. Van Dam

Dissertations

No abstract provided.


The Formation And Study Of Certain Bicyclic Enolate Monoanions And Dianions, Ernest William Crowe Aug 1972

The Formation And Study Of Certain Bicyclic Enolate Monoanions And Dianions, Ernest William Crowe

Masters Theses

No abstract provided.


The Dimetalation And Subsequent Functionalization Of 1,3-Dimethylnaphthalene By Means Of Amylsodium In The Presence Of Certain Tertiary Amines, Atilla Tuncay Aug 1972

The Dimetalation And Subsequent Functionalization Of 1,3-Dimethylnaphthalene By Means Of Amylsodium In The Presence Of Certain Tertiary Amines, Atilla Tuncay

Masters Theses

I. Introduction

It is well known that the hydrogen atoms of a methyl group directly attached to an aromatic system are sufficiently acidic to be abstracted by suitable bases to generate the corresponding α-anion.1,2 These monoanions have frequently served as suitable intermediates for the formation of a large variety of a-condensation products in good to excellent yields2 On the other hand, attempts to obtain α,α-dianions from various dimethylaromatic systems have met with limited success.2 Due to the lack of sufficiently strong bases, dimetalation products were obtained only in poor yields even at high temperatures and prolonged reaction …


Kinetics Of The Formation Of Nickel(Ii) Complexes With N,N’-Dibenzylethylenediamine And N,N’-Bis(2-Picolyl)Ethylenediamine, Zahid Amjad Aug 1972

Kinetics Of The Formation Of Nickel(Ii) Complexes With N,N’-Dibenzylethylenediamine And N,N’-Bis(2-Picolyl)Ethylenediamine, Zahid Amjad

Masters Theses

No abstract provided.


The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman Aug 1972

The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman

Dissertations

No abstract provided.


The Relationship Between Degree Of Clay Dispersion And The Optical And Pore Properties Of Starch - Clay Coatings, Chinu S. Dalal Apr 1972

The Relationship Between Degree Of Clay Dispersion And The Optical And Pore Properties Of Starch - Clay Coatings, Chinu S. Dalal

Masters Theses

No abstract provided.


Kinetics Of Free Radical-Initiated Polymerization Of Α-Methylstyrene In The Region Of The Ceiling Temperature, Fred E. Huang Apr 1972

Kinetics Of Free Radical-Initiated Polymerization Of Α-Methylstyrene In The Region Of The Ceiling Temperature, Fred E. Huang

Masters Theses

No abstract provided.


Development Of An Ultra High Shear Recording Viscometer, David C. Thornton Apr 1972

Development Of An Ultra High Shear Recording Viscometer, David C. Thornton

Masters Theses

No abstract provided.


Heats Of Combustion Of Alpha-Methylstyrene Oligomers, Dale Keith Humbert Apr 1972

Heats Of Combustion Of Alpha-Methylstyrene Oligomers, Dale Keith Humbert

Masters Theses

Introduction

The heat of polymerization (∆Hp) of α-methylstyrene (AMS) has been a source of study for many years. The structure of AMS is shown in Figure 1.

The first quantitative work was done by Roberts and Jessup.1 Their values were more positive than those theoretically calculated by Flory2 and compared with ∆Hp data of other systems. This was not totally unexpected and could be satisfactorily explained on the basis of steric hindrance and loss of resonance energy of conjugation. This steric hindrance arose from "head-to-tail" polymerization of the 1, 1-disubstituted ethylene structure.3 Their data …


Synthesis And Proof Of Structure Of 2, 2-Dichloro-7h-Cyclobut-(A)-Indian-1-One: A New Route To 4, 5-Benztropolone, Thomas Renwick Potts Dec 1971

Synthesis And Proof Of Structure Of 2, 2-Dichloro-7h-Cyclobut-(A)-Indian-1-One: A New Route To 4, 5-Benztropolone, Thomas Renwick Potts

Masters Theses

No abstract provided.


The Response Of The Micro-Adsorption Detector To Inorganic Cations, David P. Mckay Aug 1971

The Response Of The Micro-Adsorption Detector To Inorganic Cations, David P. Mckay

Masters Theses

No abstract provided.