Chemoselective, Isomerization-Free Synthesis of <i>N</i>
-Acylketimines from N-H Imines
作者:Yearang Kwon、Young Ho Rhee、Jaiwook Park
DOI:10.1002/adsc.201601406
日期:2017.5.2
synthesized through a ruthenium‐catalyzed generation of N–H ketimines from secondary azides and subsequent acylation with mixed anhydrides under mild conditions. The synthetic scope was broad to give N‐acylimines having various functional groups, including those with aliphatic groups that are prone to tautomerization to the corresponding enamides. In addition, various acyl moieties were accommodated
N-酰基酮亚胺是由钌从仲叠氮化物催化生成的N-H酮亚胺并随后在温和的条件下与混合酸酐酰化而合成的。合成范围很广,可以得到具有各种官能团的N-酰亚胺,包括那些具有容易互变异构化为相应酰胺的脂肪族基团。另外,容纳了各种酰基部分。将格氏试剂高度非对映选择性的亲核加成到环状N-酰亚胺上,说明了这种化学选择性亚胺生成的合成效用。