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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
The Effect Of Stereoelectronic Control And Long Range Interaction On The Stability Of Bicyclic Enolate Anions, Edwin M. Van Dam
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
The Formation And Study Of Certain Bicyclic Enolate Monoanions And Dianions, Ernest William Crowe
Masters Theses
No abstract provided.
The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman
The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman
Dissertations
No abstract provided.
The Synthesis And Characterization Of The 2,2'-Bisacylazide Of 3,3'-Bipyridine, Magdy Adly Guirguis El-Fayoumy
The Synthesis And Characterization Of The 2,2'-Bisacylazide Of 3,3'-Bipyridine, Magdy Adly Guirguis El-Fayoumy
Chemistry & Biochemistry Theses & Dissertations
The primary objective of this research has been the synthesis and characterization of a new heterocyclic diacylazide, the 2,2'-bisacylazide of 3,3'-bipyridine 19. This heterocyclic diacylazide has been successfully synthesized from the phenanthrolin-5,6-dione 14, and examined with regard to its.thermal and photolytic decomposition.
Thermal decomposition of this disacylazide seems to go by a double-barreled Curtius rearrangement leading to a series of pyridonaphthyridinone (20) compounds such as 22 and 29.
An initial study of the photolysis of this bisacylazide has been initiated to examine the possible formation of nitrene-type intermediates.
Preparation And Reactions Of 2-Benzo [B] Thienylsodium, Larry Kennard
Preparation And Reactions Of 2-Benzo [B] Thienylsodium, Larry Kennard
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Science and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Chemistry by Larry Kennard on April 21, 1972.
Catechol Effected Dissolution Of Silicate Minerals, James Maurice Kelley
Catechol Effected Dissolution Of Silicate Minerals, James Maurice Kelley
Dissertations and Theses
The chemical properties of guanidinium tris(catecholato)siliconate, [(H₂N)₂C=NH₂]₂[Si(C₆H₄O₂)₃]·XH₂O (0 < X < 1), precipitated from an ammoniacal solution of silica and catechol by adding guanidinium hydrochloride, (H₂N)₂C=NH·HC1, were studied, and infrared, nmr, x-ray powder diffraction, and analytical data were gathered.
This same compound was, upon addition of' (H₂N)₂C=NH·HC1, isolated from 0.25, M aqueous catechol solutions buffered at pH 10 and containing the silicate minerals albite, andradite, muscovite, pyrophyllite, talc, and wollastonite, and also from unbuffered catechol solutions containing wollastonite and andradite.
It is concluded from this work that the formation of an anionic catechol-silicon complex, Si(C₆H₄O₂)₃²⁻, is largely responsible for the dissolution of the minerals mentioned above. From this conclusion, it is proposed that naturally occurring members of the class of organic compounds to which catechol belongs, the aromatic v̲i̲̲c̲-diols, may play …
Reactions Of Trichloro(Beta-Diketonato)Titanium(Iv) Complexes With Alcohols In The Presence Of Pyridine, William R. C. Munsey
Reactions Of Trichloro(Beta-Diketonato)Titanium(Iv) Complexes With Alcohols In The Presence Of Pyridine, William R. C. Munsey
Dissertations, Theses, and Masters Projects
No abstract provided.
The Thermal Rearrangement Of Triarylacetonitrile Oxides., Leslie Wayne Gibbs
The Thermal Rearrangement Of Triarylacetonitrile Oxides., Leslie Wayne Gibbs
University of the Pacific Theses and Dissertations
This research is a detailed study of the rearrangement of triarylacetonitrile oxides to the corresponding triarylmethylisocyanates. The kinetics of the rearrangement of triphenylacetonitrlle oxide was followed by infrared absorption spectroscopy using the peak due to the N-0 stretching (1307cm-1). A study, both, using the differential method (i.e., a plot of the logs of the initial slopes vs. the log of the concentration) and a check of the integrated forms of the rate expressions to determine which gave a constant value for the rate constant showed that the reaction is first order.
From measurements of the rate constant, k, …
Birch Reduction Of Benzamide, N-Substituted Benzamides And Biphenylene, Luther Dickson
Birch Reduction Of Benzamide, N-Substituted Benzamides And Biphenylene, Luther Dickson
University of the Pacific Theses and Dissertations
The Birch reduction of benzamide with sodium and absolute ethanol. 95% ethanol, or tert-butanol in liquid ammonia gave 1,4-dihydrobenzamide in varying amounts. The amide group was not reduced. The two most important variables encountered were the alcohol used and whether or not ammonium chloride was added after the reduction was completed. Without this addition of ammonium chloride, little or no 1,4-dihydrobenzamide was present after workup, while with its addition some 1,4-dihydrobenzamide formed whether the proton source was absolute ethanol, 95% ethanol, or tert-butanol. The highest yield was obtained with tert-butanol with ammonium chloride being added. Addition of ammonium chloride apparently …