科研之友
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摘要
Amberlyst-15 (H ) resin catalyzes efficient cationic endo-cyclization of - and -unsaturated alcohols to yield tetrahydro-(2H)-pyrans and oxepanes. The merits of the present protocol are good yield of the products under mild conditions, simple workup, and reusability of the resin.
- 出版日期2010
