Stereoselective Synthesis of β‑Lactam-triflones under Catalyst-Free Conditions
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资源简介：
The first example of the synthesis of β-lactam-triflones is described. Treatment of 2-diazo-1-aryl-2-(trifluoromethylsulfonyl)ethanones 1cf with imines 2 under catalyst-free heating conditions provides pharmaceutically attractive multisubstituted β-lactam-triflones 3 in good to high yields with regio- and diastereoselectivities. A successive Wolff rearrangement and Staudinger [2 + 2] cycloaddition reaction are key elements for the success of this transformation.
创建时间：
2016-02-12
