作者:Michael Harmata、Mehmet Kahraman
DOI:10.1055/s-1995-3986
日期:1995.6
Reduction of selected 2,1-benzothiazines with sodium amalgam leads to the formation of 2-alkenylanilines in high yield. The benzothiazines are readily available from the reaction of N-phenyl-S-(p-tolyl)sulfonimidoyl chloride with alkynes in the presence of aluminum chloride. The sulfonimidoyl chloride is derived from aniline, and the process described herein thus constitutes a high-yielding, regioselective functionalization of aniline.
选定的2,1-苯并噻唑与钠汞合金还原反应可高效生成2-烯基苯胺。苯并噻唑可通过在氯化铝存在下,使N-苯基-S-(对甲苯基)磺酰亚胺氯与炔烃反应来获得。磺酰亚胺氯源自苯胺,因此本文所述的过程构成了苯胺的高产率、区域选择性功能化。