A precatalyst of FeCl2 and iminopyridine was activated in situ by a combination of diethylzinc and magnesium bromide etherate; it catalyzed the reductive cyclization of 1,6-enynes to give pyrrolidine and tetrahydrofuran derivatives from N- and O-tethered 1,6-enynes. The scope of the transformation was explored.
FeCl 2和亚
氨基吡啶的预催化剂通过
二乙基锌和
溴化镁醚化物的组合被原位活化。它催化1,6-烯炔的还原环化反应,从N和O系的1,6-烯炔生成
吡咯烷和
四氢呋喃衍
生物。探索了转换的范围。