Abstract
AbstractRecycling dialdehyde starch and similar dialdehydes were achieved by applying the benzoin condensation reaction under proper conditions that can avoid the so‐called alkaline degradation of the substrates. The products were isolated in good yield (90%) and their properties indicated the presence of the tautomoric structure (α‐hydroxyketo ⇋ enediol) forms. The desmotropy properties of the products were asserted by analytical means and by preparing the indicative derivatives. Recycling the cleaved repeating units was also supported. In general, the products belonged to polyciclicosone structure. Moreover, two types of the polymer products were obtained which differ in some of their properties, the size of the rings of their repeating units and also in their over all constitution.
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