Concept explainers
When compound C, which is often used to model a more frequently occurring unit in lignins, was ozonized, product D was obtained. In a variety of ways it has been established that the stereochemistry of the three-carbon side chain of such lignin units remains largely if not completely unchanged during oxidations like this.
For GC/MS, D was converted to its tetrakis(O-trimethylsilyl) derivative, which had
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