A New, General Entry to 3,5-Unsubstituted 4-O-Alkyl Tetramates
作者:Franz F. Paintner、Marcel Metz、Gerd Bauschke
DOI:10.1055/s-2002-28522
日期:——
A variety of 3,5-unsubstituted 4-O-benzyl tetramates 10 was prepared in good overall yield from methyl (E)-3-benzyloxy-4-oxobut-2-enoate 7 by a reductive amination-lactamization sequence. An efficient approach to this building block as well as to various 3-alkoxy analogues is presented.