Catalytic alkene cyclization reactions for the stereoselective synthesis of complex “terpenoid-like” heterocycles
作者:Jared T. Moore、Cristian Soldi、James C. Fettinger、Jared T. Shaw
DOI:10.1039/c2sc21405a
日期:——
described. This reaction forms up to two rings, three bonds, and three stereogenic centers with excellent stereo- and regiocontrol in a single step. Although control experiments demonstrate that the active catalyst is protic acid, Sc(OTf)3 serves as an effective and practical pre-catalyst. The scope of this reaction is demonstrated with 21 monocyclizations and 14 bicyclization reactions.
描述了稠密取代的四氢喹啉的新催化合成。该反应可在一个步骤中形成多达两个环,三个键和三个立体异构中心,并具有出色的立体和区域控制能力。尽管对照实验表明活性催化剂是质子酸,但Sc(OTf)3却是一种有效而实用的预催化剂。通过21个单环化和14个双环化反应证明了该反应的范围。