This perspective highlights the catalytic characteristics and future prospects of nano-/hierarchical zeolites in gaseous phase and liquid phase reactions.
Carbohydrates are expected to replacep etroleum and to become the base of industrial chemistry.C hirality is one particular area in which carbohydrates have as pecial potentiala dvantage over petroleum resources. Herein, we report ac atalytic approachf or thed irect production of d-tetroses [i.e., d-(À)erythrose and d-(+ +)-erythrulose] from d-hexoses through af ast retro-aldol process at 190 8Ct hat achieves ay ield of 46 %a nd completely retains the chiral centers in the final chiral synthon. The d-tetrose products were further converted into their derivatives, thereby accomplishing transfer of chirality from natural chiral hexoses to high-value-added chiral chemicals. Our results also suggest that the product distribution for the conversion of d-hexoses was determined by their isomerization and epimerization trends that competed with their corresponding retro-aldol condensation processes.
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