Furanyl Cyclic Ethers: Single and Double Diastereoselectivity in the Synthesis of 2,4-Di and 2,4,5-Trisubstituted Tetrahydropyrans
作者:Dennis A. Cooper、Emma Robbins、Graham J. Tizzard、Simon J. Coles、Matthew O’Brien
DOI:10.1021/acs.joc.6b02831
日期:2017.4.7
of a prochiral bis-hydroxymethyl group with the epimerization of a chiral furanyl ether in a single transformation, high levels of double diastereoselectivity have been achieved in a synthesis of 2,4,5-trisubstituted tetrahydropyrans, which proceeds under thermodynamic control.
Synthesis of substituted 2,5-dihydro-2,2'-bifurans
作者:Danil K. Vshivkov、Ludmila N. Sorotskaja、Anton А. Merkushev、Maxim G. Uchuskin
DOI:10.1007/s10593-021-02991-7
日期:2021.8
A simple method for the synthesis of 2,4-diaryl-2,5-dihydro-2,2'-bifurans was developed based on the reaction of α,β-unsaturated carbonyl compounds containing a furan ring with trimethylsulfonium iodide under the conditions of the Corey–Chaykovsky reaction.