Browsing by Subject "Ring formation (Chemistry)"
Now showing items 1-11 of 11
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(Texas A&M University. Libraries, 1987)The title compounds were easily prepared from several alkyl-alkenyl amines. The carbamates were variations on the general structure of 1-[butyl(4-pentenyl)carbamoyl)oxy]-2(1H)-pyridinethione 29. These compounds react in a ...
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(Texas A&M University. Libraries, 1976)A series of substituted divinylsilanes: dimethyl-distyryl-(11). Triphenyl-stryrl-(12), diphenyl-distyryl(13), have been prepared for photochemical study. The results of low conversion photolyses of the di-methyl-di-styrylsilane ...
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(Texas A&M University. Libraries, 1982)Computational methods were developed for correctly calculating the reduced masses for the ring-puckering and ring-twisting vibrations and for calculating the kinetic energy expansions for ring-puckering vibrations. Computer ...
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(Texas A&M University. Libraries, 1982)Cationic (pi)-cyclization of allenyl alcohols 10a,b and allenyl ketones 11a,b provided evidence that the mode of ring closure of (gamma)-allenyl cationic systems is strongly dependent on the substitution pattern of the ...
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(Texas A&M University. Libraries, 1992)An intermolecular-intramolecular Michael reaction sequence was developed for the synthesis of cyclopentanes and cyclohexanes. Silyl ketene acetals and silyl enol ethers were used as the nucleophilic initiators of the ring ...
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(Texas A&M University. Libraries, 1978)The basic goal of this study was the development and utilization of new methodology for synthesis of bicycle[5.4.0]undecanes, bicycle[4.4.0]decanes, bicycle[4.3.0]nonanes, and spiro[5.5]undecanes. The three aspects ...
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(Texas A&M University. Libraries, 1985)
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(Texas A&M University. Libraries, 1980)The purpose of this study was to synthesize a macrocyclic polystannane, 8, which would potentially use the Lewis acid character of several tin atoms to create an acidic solvation ring similar to the basic ring of the crown ...
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(Texas A&M University. Libraries, 1983)The oxidative cyclization of diester dienolates was investigated as a new synthetic method for cyclizing diesters. The proposed cyclization would use a transition metal salt to first complex with the terminal enolates to ...
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(Texas A&M University. Libraries, 1983)An (alpha)-amino acid was used in the preparation of non-peptide materials. The use of the (beta)-hydroxy-(alpha)-amino acid serine (14) was demonstrated to be effective in the construction of 2-substituted-4-carboxy-(DE ...
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(Texas A&M University. Libraries, 1982)Low-frequency infrared and Raman spectra have been recorded and the one-dimensional asymmetric ring-puckering potential energy functions have been determined for 3-phospholene (CH(,2)CH=CHCH(,2)PH),(' )3-phospholene-1-d(,1), ...