5-Exocyclic Products, 2,3,5-Trisubstituted Tetrahydrofurans via Prins-Type Cyclization
作者:Satish N. Chavre、Hyunah Choo、Joo Hwan Cha、Ae Nim Pae、Kyung Il Choi、Yong Seo Cho
DOI:10.1021/ol061528x
日期:2006.8.1
[reaction: see text] 5-Exocyclic products, 2,3,5-trisubstituted tetrahydrofurans, were synthesized from homopropargylic alcohols with terminally substituted alkynes and various aldehydes via Prins-type cyclization. It is of interest that the exocyclic vinyl cation generated as a result of Prins-type cyclization could be trapped as a vinyl triflate when CH2Cl2 was used as a solvent, whereas in ethereal