Dehydrative Re2O7‑Catalyzed Approach to Dihydropyran Synthesis
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https://figshare.com/articles/dataset/Dehydrative_Re_sub_2_sub_O_sub_7_sub_Catalyzed_Approach_to_Dihydropyran_Synthesis/13353359
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资源简介：
Monoallylic 1,3- and 1,5-diols undergo Re2O7-mediated ionization to form allylic cations that engage in cyclization reactions to form dihydropyran products. The reactions give the 2,6-trans-stereoisomer as the major products as a result of minimizing steric interactions in a boat-like transition state. The results of these studies are consistent with cationic intermediates, with an intriguing observation of stereochemical retention in one example.
创建时间：
2020-12-09
