Reductive conjugate addition nitro-Mannich route for the stereoselective synthesis of 1,2,3,4-tetrahydroquinoxalines.
Reductive conjugate addition nitro-Mannich route for the stereoselective synthesis of 1,2,3,4-tetrahydroquinoxalines.
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用于立体选择性合成 1,2,3,4-四氢喹喔啉的还原共轭加成硝基曼尼希路线。
DOI:
10.1039/c6ob01530a
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发表时间:
2016
影响因子:
3.2
通讯作者:
Anderson JC
中科院分区:
文献类型:
--
作者:
Anderson JC
A concise, high yielding and structurally divergent synthesis of complex 1,2,3,4-tetrahydroquinoxalines with excellent diastereoselectivity is described. A wide array of nitroalkenes and imines derived from commercially available aromatic aldehydes and 2-chloroanalines were subjected to a key reductive conjugate addition nitro-Mannich reaction to give diastereomerically pure β-nitro amines. Sequential reduction of the nitro function followed by Pd-catalyzed intramolecular N-arylation of the resultant primary amine onto the 2-chloroanailine gives highly substituted 1,2,3,4-tetrahydroquinoxalines. Non basic imines were found to participate better in the nitro-Mannich reaction if the stronger acid methanesulfonic acid was used to promote the reaction. The 3 step reaction sequence should be useful for the array synthesis of drug like scaffolds.
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DOI:
10.1021/jo3010827
发表时间:
2012
期刊:
The Journal of organic chemistry
影响因子:
--
作者:
Anderson JC
通讯作者:
Anderson JC
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
K. Majumdar;K. Ray;S. Ponra
通讯作者:
S. Ponra
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
X. Zheng;J. Mo
通讯作者:
J. Mo
影响因子:
2.7
作者:
D. Noble;David Wu;B. Emerson;S. Sheppard;T. Lieuwen;L. Angello
通讯作者:
L. Angello
影响因子:
3.2
作者:
James C. Anderson;Helen A. Chapman
通讯作者:
Helen A. Chapman