ISSN:
0075-4617
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Structural Elucidation of Synthetic Products by Mass Spectrometry, IV. - Synthesis of Some New (1-Phenyl-4-pyrazolyl)acetic Acids and Determination of Their Structures by Mass SpectrometryThe isomeric 3,5-disubstituted (1-phenyl-4-pyrazolylacetic acids 3 and/or 4 are formed by cyclization of phenylhydrazine with β,β-diacylpropionic esters (1, R1 ≢ R2) followed by saponification. The structures were determined by mass spectrometry.
Notes:
Durch Cyclisierung von Phenylhydrazin mit β,β-Diacylpropionsäureestern (1, R1 ≢ R2) und anschließende Verseifung erhält man die isomeren 3,5-disubstituierten (1-Phenyl-4-pyrazolyl)-essigsäuren 3 und/oder 4. Die Strukturzuordnung erfolgte massenspektrometrisch.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.197319731113