What was Wallach's contribution to alicyclic compounds?
My primary contribution was to establish the existence and diversity of alicyclic compounds, especially the 'Terpenkörper.' Before my systematic studies, the structural complexities and the phenomenon of isomerism within this group were largely unrecognized. By isolating and meticulously analyzing compounds from natural sources like essential oils, I provided concrete evidence for their unique chemical character and their relationship to cyclic structures. My book, 'Terpene und Campher,' summarizes these findings, offering a comprehensive catalog and classification based on empirical data.
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