Nucleophilic ring opening of tetrahydro-1,3-oxazines and 1,3-oxazolidines by alkynyl anions: A novel synthesis of β-aminoacetylenes
作者:Ming-Jung Wu、Der-Shenq Yan、Hui-Wen Tsai、Shu-Hui Chen
DOI:10.1016/s0040-4039(00)73304-1
日期:1994.7
The reaction of alkynyl boranes, generated in situ from lithium acetylides and boron trifluoride etherate, with 3-benzyl-tetrahydro-1,3-oxazines and 1,3-oxazolidines gave the corresponding β-aminoacetylenes in modest to good yield. By the employment of titanium acetylides to the same reaction provided comparable results.
由
乙炔化
锂和
三氟化硼醚化物原位生成的炔基
硼烷与3-苄基四氢-1,3-恶嗪和
1,3-恶唑烷的反应以适度至良好的收率得到了相应的β-
氨基
乙炔。通过使用
乙炔化
钛进行的相同反应提供了可比的结果。