Amphiphilic Biaryl Monophosphine Ligands by Regioselective Sulfonation.

Amphiphilic Biaryl Monophosphine Ligands by Regioselective Sulfonation.
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通过区域选择性磺化制备两亲性联芳基单膦配体。

DOI:
10.1021/acs.orglett.0c04001
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发表时间:
2021-02-05
期刊:
影响因子:
5.2
通讯作者:
Buchwald SL
Buchwald SL
中科院分区:
化学1区
文献类型:
--
作者:
Rodriguez J;Dhanjee HH;Buchwald SL

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两亲性配体因其在水存在下促进有机金属反应的能力而有价值。介绍了一系列市售联芳基单膦的区域选择性磺化反应,生成两亲性配体。在该一步方案中,小心地控制温度和发烟硫酸的添加,以获得具有>95%区域选择性的高产率的磺化联芳基单膦配体,而不需要色谱纯化。
Amphiphilic ligands are valued for their ability to facilitate organometallic reactions in the presence of water. The regioselective sulfonation of a series of commercially available biaryl monophosphines to generate amphiphilic ligands is presented. In this one-step protocol, the temperature and addition of fuming sulfuric acid were carefully controlled to arrive at sulfonated biaryl monophosphine ligands in high yields with >95% regioselectivity without the need for chromatographic purification.
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