Thesis--Chemistry : Chicago : 1916. / Notes bibliographiques.

Thesis (Ph. D.)--University of Chicago, 1915. / "A Private Edition Distributed by the University of Chicago Libraries." "Appeared in the Journal of the American Chemical Society, Vol. 38, No. 9, 1916." Includes bibliographical references. Also available on the Internet.

Thesis (Ph. D.)--University of Chicago, 1915. / "A Private Edition Distributed by the University of Chicago Libraries." "Appeared in the Journal of the American Chemical Society, Vol. 38, No. 9, 1916." Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1965. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis--University of Wisconsin--Madison. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (doctoral)--University of Tartu, 2006. / This dissertation is based on 7 papers. Includes bibliographical references.

Thesis (Ph. D.)--University of Chicago, Department of Chemistry, 1919. / Includes bibliographical references. Also available on the Internet.

Thesis (M.A.)--Boston University / Although a large number of substituted hydrazines are known, the preparation of simple monoalkylhydrazines in a manner suitable for the large-scale economical synthesis has never been developed. Three methods commonly employed in the laboratory i.e. the direct alkylation of hydrazine by an alkyl halide, the alkylation of benzalazine with alkyl sulfates and the catalytic reduction of hydrazones all have serious limitations. It appears that the reduction of an N-nitro or N-nitroso group should give a hydrazine derivative if the reduction could be carried out under conditions which would reduce these groups without scission of the nitrogen to nitrogen bond. Such reductions of a few compounds, notably N-methyl-N-nitrosourea, have been known for some time but the yields are either low or not given in the literature in most cases. The current research project was directed toward the development of suitable conditions for this desired reduction without hydrogenolysis of the N-N bond. Many possible reducing agents are known and should be investigated; the present paper deals only with the reduction of these compounds with zinc dust and dilute acetic acid [TRUNCATED]

Thesis (M.A.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / Little work has been done on the effects of the substituents R and R' (where R & R' are either alkyl or aryl groups) on the N-H stretching and bending frequencies of substituted hydrazines. In this project an investigation was undertaken to correlate the N-H stretching and bending frequencies of 1, 1-disubstituted hydrazines. The difference between Vs and Vas was also investigated. The presence of hydrogen bonding made it difficult to assign the symmetric and asymmetric stretching frequencies of 1, 1-disubstituted hydrazines both neat and in dilute carbon tetrachloride solution. To overcome this difficulty vapor phase studies or some of the above compounds were undertaken. / 2031-01-01

Thesis (PH. D.)--University of Chicago, 1913. / Includes bibliographical references. Also available on the Internet.