- TETRAZOLYL-CONTAINING CYCLOPROPANECARBOXAMIDES
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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
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Paragraph 0408-0410
(2019/06/20)
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- Synthesis and carbon-13 nuclear magnetic resonance spectra of monoethyl 4-nitro and 4-amino phthalates
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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.
- Seshadri, Kalkunte S.,Bacha, John D.
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p. 617 - 621
(2007/10/02)
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