Synthesis and properties of a sterically crowded triarylphosphine bearing an ester group
Synthesis and properties of a sterically crowded triarylphosphine bearing an ester group
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含酯基的空间拥挤三芳基膦的合成及性能
DOI：
10.1080/10426507.2015.1114943
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Shigeru Sasaki and Masaaki Yoshifuji
中科院分区：
文献类型：
--
作者：
Takafumi Ishibe;Yoshiaki Nakamura;Hideki Matsui;Shotaro Takeuchi;and Akira Sakai1;林正彦;Shigeru Sasaki and Masaaki Yoshifuji
通过相应的（溴芳基）膦的锂化，然后与过量的碳酸二乙酯反应，合成了带有酯基的空间拥挤的三芳基膦，（4-乙氧基羰基-2,6-二异丙基苯基）双（2,4,6-三异丙基苯基）膦。该酯为柠檬黄色晶体，与相应的橙色醛和酮相比，其紫外-可见吸收和荧光表现出蓝移。讨论了酯基取代对空间拥挤三芳基膦光物理和氧化还原性能的影响，并简要综述了带有醛、酮和酯基团的空间拥挤三芳基膦的性能。
A sterically crowded triarylphosphine bearing an ester group, (4-ethoxycarbonyl-2,6-diisopropylphenyl)bis(2,4,6-triisopropylphenyl)phosphine, was synthesized by the lithiation of the corresponding (bromoaryl)phosphine followed by the reaction with excess diethyl carbonate. The ester was obtained as lemon yellow crystals and exhibits the blueshifted UV-Vis absorption and fluorescence as compared with the orange-colored corresponding aldehyde and ketone. The effect of the substitution of an ester group on the photophysical and redox properties of the sterically crowded triarylphosphine is discussed, and the properties of the sterically crowded triarylphosphines bearing an aldehyde, a ketone, and an ester groups are briefly reviewed.