Amberlyst-15–Catalyzed Efficient Cyclization of γ- and δ-Unsaturated Alcohols: Green Synthesis of Oxygen Heterocycles
作者:Soni A. Singh、Shilpi Kabiraj、Reena P. Khandare、Shrikant P. Nalawade、Kiran B. Upar、Sujata V. Bhat
DOI:10.1080/00397910902945345
日期:2009.12.15
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.
Intramolecular hydroalkoxylation catalyzed inside a self-assembled cavity of an enzyme-like host structure
作者:L. Catti、K. Tiefenbacher
DOI:10.1039/c4cc08211g
日期:——
Self-assembled resorcin[4]arene hexamer catalyzes the intramolecular hydroalkoxylation of unsaturated alcohols to the corresponding cyclic ethers under mild conditions.