Silver-Mediated Direct Amination of Benzoxazoles: Tuning the Amino Group Source from Formamides to Parent Amines
作者:Seung���Hwan Cho、Ji���Young Kim、S.���Yunmi Lee、Sukbok Chang
DOI:10.1002/anie.200903957
日期:2009.11.16
Going to the source: Formamides or parent amines were used as an amino group source for the silver‐mediated amination of benzoxazoles. Although reactions with formamides proceeded at high temperatures, the direct amination with amines took place under much milder conditions (see scheme). Optically active amino groups could also be installed without racemization.
来源:甲酰胺或母体胺被用作氨基介导的苯并恶唑的银基胺化反应。尽管与甲酰胺的反应在高温下进行,但与胺的直接胺化反应却在温和得多的条件下进行(参见方案)。光学活性的氨基也可以不消旋地安装。