Potassium tert-Butoxide Mediated O-Arylation of N-Hydroxyphthalimide and Oximes with Diaryliodonium Salts

Potassium tert-Butoxide Mediated O-Arylation of N-Hydroxyphthalimide and Oximes with Diaryliodonium Salts
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DOI:
10.1055/s-0033-1340192
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发表时间:
2014-06
期刊:
Synthesis
影响因子:
--
通讯作者:
Luis C. Misal Castro;N. Chatani
Luis C. Misal Castro;N. Chatani
中科院分区:
其他
文献类型:
--
作者:
Luis C. Misal Castro;N. Chatani

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摘要 报道了一种在叔丁醇钾存在下,在温和的反应条件和短的反应时间下,将N-羟基邻苯二甲酰亚胺、吡啶-2-甲醛肟、苯乙酮肟或二甲基乙二肟与二芳基碘鎓盐进行直接O-芳基化的方法。当反应在 40 °C 或更低的温度下进行时,二芳基碘抗衡离子盐在反应中起着重要作用。
Abstract A metal-free method for the direct O-arylation of N-hydroxyphthalimide, pyridine-2-carboxaldehyde oxime, acetophenone oxime, or dimethylglyoxime with diaryliodonium salts under mild reaction conditions and short reaction time in the presence of potassium tert-butoxide is reported. The diaryliodonium counterion salt plays an important role in the reaction when it is carried out at 40 °C or lower temperatures.