A Direct and Stereoretentive Synthesis of Amides from Cyclic Alcohols.
A Direct and Stereoretentive Synthesis of Amides from Cyclic Alcohols.
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DOI:
10.1002/ejoc.201101165
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发表时间:
2011-12
影响因子:
2.8
通讯作者:
Lepore, Salvatore D.
中科院分区:
文献类型:
--
作者:
Mondal, Deboprosad;Bellucci, Luca;Lepore, Salvatore D.
Chlorosulfites prepared in situ using thionyl chloride react with nitrile complexes of titanium (IV) fluoride to give a one-pot conversion of alcohols into amides. For the first time, amides are obtained from cyclic alcohols with stereoretention. Critical to the design of these new Ti(IV) reactions has been the use of little explored Ti(IV) nitrile complexes which are thought to chelate chlorosulfites in the transition state to create a carbocation that is rapidly captured by the nitrile nucleophile via a front-side attack mechanism.
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