PIFA–BF 3 ·OEt 2 mediated intramolecular regioselective domino cyclization of ynamides: A novel method for the synthesis of tetrahydroisoquinoline-oxazol-2(3 H )-ones
作者:Winai Ieawsuwan、Somsak Ruchirawat
DOI:10.1016/j.bmc.2017.03.034
日期:2017.6
The transition metal-free intramolecular regioselective domino cyclization of N-Boc protected ynamides has been developed to provide the corresponding tetrahydroisoquinoline-oxazo-2(3H)-ones in moderate to good yields.