Stereoretentive Copper (II) Catalyzed Ritter Reactions of Secondary Cycloalkanols.
Stereoretentive Copper (II) Catalyzed Ritter Reactions of Secondary Cycloalkanols.
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DOI:
10.1002/adsc.201300233
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发表时间:
2013-10-11
影响因子:
5.4
通讯作者:
Lepore, Salvatore D.
中科院分区:
文献类型:
--
作者:
Al-huniti, Mohammed H.;Lepore, Salvatore D.
A Ritter-like coupling reaction of cyclic alcohols and both aryl and alkyl nitriles to form amides catalyzed by copper (II) triflate is described. These reactions proceed in good yields under mild and often solvent-free conditions. With 2- and 3-substituted cycloalkanols, amide products are formed with near complete retention of configuration. This is likely due to fast nucleophilic capture of a non-planar carbocations (hyperconjomers) stabilized by ring hyperconjugation. A critical aspect of this novel catalytic cycle is the in situ activation of the alcohol substrates by thionyl chloride to form chlorosulfites.
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影响因子:
2.8
作者:
Mondal, Deboprosad;Bellucci, Luca;Lepore, Salvatore D.
通讯作者:
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