Synthesis of Fused 3-Aminoazepinones via Trapping of a New Class of Cyclic Seven-Membered Allenamides with Furan
作者:Ben Schurgers、Ben Brigou、Zofia Urbanczyk-Lipkowska、Dirk Tourwé、Steven Ballet、Frank De Proft、Guy Van Lommen、Guido Verniest
DOI:10.1021/ol501529z
日期:2014.7.18
reaction of furan with cyclic allenamides. These reactive intermediates are the first examples of cyclic seven-membered allenamides and were prepared starting from N-(2-chloroallyl)-2-allylglycine derivatives via ring-closing metathesis followed by dehydrochlorination. The trapping of the intermediate cycloallene with furan occurred endo- and regioselectively and provided a convenient entry into new building