74090-06-5Relevant academic research and scientific papers
TETRAZOLYL-CONTAINING CYCLOPROPANECARBOXAMIDES
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Paragraph 0408-0410, (2019/06/20)
The present invention relates to tetrazolyl-containing cyclopropanecarboxamides compounds of general formula (I) as described and defined herein, to pharmaceutical compositions and combinations comprising said compounds and to the use of said compounds fo
Synthesis and carbon-13 nuclear magnetic resonance spectra of monoethyl 4-nitro and 4-amino phthalates
Seshadri, Kalkunte S.,Bacha, John D.
, p. 617 - 621 (2007/10/02)
Carbon-13 nmr has been found to be an effective spectroscopic method for measuring the ratio of isomeric monoethyl esters resulting from the esterification of 4-nitrophthalic acid, the alcoholysis of 4-nitrophthalic anhydride, and the catalytic reduction of monoethyl 4-nitrophthalates.Precise values of the (13)C chemical shifts for 1-ethyl and 2-ethyl 4-nitrophthalate and the corresponding 4-aminophthalates were determined; the shielding parameters are explained in terms of known structural effects.Details of the esterification, alcoholysis, reduction reactions, and the isolation of 1-ethyl 4-nitrophthalate are described.
