Journal
CHEMISTRY LETTERS
Volume 41, Issue 1, Pages 44-46Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2012.44
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Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan
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A method of synthesizing 2-iminoindolines using samarium diiodide (SmI2) is reported. In the presence of tert-butyl alcohol, treatment of carbodiimides bearing alpha,beta-unsaturated carbonyl moieties with a stoichiometric amount of SmI2 afforded 2-iminoindolines in moderate to high yields. The products were isolated after Boc protection of the amidine moieties. This reaction proved to be applicable to lactams and acyclic/cyclic esters as substrates.
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