期刊
SYNTHESIS-STUTTGART
卷 52, 期 18, 页码 2679-2688出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0040-1707396
关键词
nitroalkenes; halogenation; chlorination; nitro compounds; chemoselectivity
资金
- Russian Science Foundation [19-73-00146]
- Russian Science Foundation [19-73-00146] Funding Source: Russian Science Foundation
Chlorination of conjugated nitroalkenes with iodobenzene dichloride or sulfuryl chloride to give target alpha-chloronitroalkenes in good yields is described. Details of the procedure depend on the donating ability of the nitroalkene substituents. The activity of the described chlorinating agents increases in order 'PhICl2/Py' < 'SO2Cl2' < 'SO2Cl2/HCl' with the former producing the best yields for highly donating substrates and the latter for non-activated groups. An autocatalytic role of hydrogen chloride and the chemoselectivity of chlorination were also demonstrated.
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