The mechanism of the Mitsunobu reaction. II. Dialkoxytriphenylphosphoranes

The mechanism of the Mitsunobu reaction. II. Dialkoxytriphenylphosphoranes
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光延反应的机理。

DOI：
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发表时间：
1983
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通讯作者：
I. Jenkins
I. Jenkins
中科院分区：
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文献类型：
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作者：
I. M. Von;I. Jenkins

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31P n.m.r. studies indicate that, in the Mitsunobu reaction, alcohols (ROH) react with triphenyl- phosphine (Ph3P) and dialkyl azodicarboxylates to produce phosphoranes of the type Ph3P(OR)2. Mixtures of alcohols produce, in addition, mixed phosphoranes, Ph3P(OR)(OR'). Phosphoranes of the type Ph3P(OR)N(CO2R?)NHCO2R' are probably intermediates in these reactions but are not observed by 31P n.m.r.