The reaction between seven- or eight-membered cyclic α-nitroketones and aromatic 1,2-dialdehydes in the presence of DBU, with tetrahydrofuran containing some water as solvent, afforded 2-nitroindane-1,2-diols with three contiguous stereocenters, one of which is quaternary, in a one-pot, diastereoselective fashion.
七元或八元环状δ-±-硝基
酮与芳香族 1,2-二醛在
DBU 的存在下,以含
水的
四氢呋喃为溶剂,以非对映选择性的方式,一次反应生成了具有三个连续立体中心(其中一个为季基)的 2-硝基
茚满-1,2
-二醇。