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Creator:: Bradway, Diane Elizabeth
Abstract:: Thermal decomposition of several di-p-toluenesulfonylhydrazones was studied. It was found that the carbene decomposition of tetramethyl-1,3-cyclobutanedione, di-p-toluenesulfonylhydrazone gave two products resulting from rearrangement. One was identified as 2,5-dimethyl-1,3,4-hexatriene. A tentative structure for the second was proposed. During the course of the study, a more convenient procedure for thermal decompositions was...
Resource Type:: Masters Thesis
Full Text:: development of carbene chemistry has opened a whole new synthetic approach to the field of organic chemistry

Creator:: Lam, Luke Kwok Tung
Abstract:: Cyclopropylcyclobutene was prepared via the intermediate dicyclopropylcarbinyl carbene which was generated by the thermal decomposition of the sodium salt of dicyclopropylketone p-toluenesulfonylhydrazone. The successive thermal isomerization of cyclopropylcyclobutene to 2-cyclopropyl-1, 3-butadiene and to vinylcyclopentene was studied. Kinetic data were obtained for the cyclopropylcyclobutene to 2-cyclopropyl-1, 3-butadiene isomerization in the gas...
Resource Type:: Masters Thesis
Full Text:: extensively from both synthetic and physical points of view of organic chemistry. Modern methods of

Creator:: Li, Xin
Abstract:: This dissertation is separated into two parts according to the two major distinct research projects. In Part I, the full account of synthetic studies toward C10-functionalized lycopodium alkaloids is described. In Part II, the detailed discussion on the exploration of the Pummerer cyclization methodology and its application to the total...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Xin Li for the degree of Doctor of Philosophy in Chemistry presented

Creator:: Li, Yang
Abstract:: Irradiation of a tryptamine linked through its side-chain nitrogen to an alkylidene malonate residue results in an intramolecular [2 + 2] cycloaddition to the indole 2,3-double bond. The resultant cyclobutane undergoes spontaneous retro-Mannich fission to produce a spiro[indoline-3,3-pyrrolenine] with relative configuration defined by the orientation of substituents in the transient...
Resource Type:: Dissertation
Full Text:: aspects of physical chemistry and organic chemistry. For modern organic chemistry, photochemistry is a

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