期刊
TETRAHEDRON
卷 70, 期 11, 页码 2027-2033出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2014.01.048
关键词
Azobenzene; Nitrobenzene; Reductive coupling; Indium; Hydrosilane
资金
- MEXT (Japan) [25410120]
- Grants-in-Aid for Scientific Research [25410120, 24590025] Funding Source: KAKEN
We demonstrated how a reduction step with a reducing system comprised of In(OTf)(3) and Et3SiH and a subsequent oxidation that occurred under an ambient (oxygen) atmosphere allowed the highly selective and catalytic conversion of aromatic nitro compounds into symmetrical or unsymmetrical azobenzene derivatives. This catalytic system displayed a tolerance for the functional groups on a benzene ring: an alkyl group, a halogen, an acetyl group, an ester, a nitrile group, an acetyl group, an ester moiety, and a sulfonamide group. (C) 2014 Elsevier Ltd. All rights reserved.
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