Synthesis of chlorophyll-a derivatives methylated in the 3-vinyl group and their intrinsic site energy.
Synthesis of chlorophyll-a derivatives methylated in the 3-vinyl group and their intrinsic site energy.
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3-乙烯基甲基化叶绿素-a 衍生物的合成及其固有位点能量。
DOI：
10.1016/j.bmcl.2016.05.008
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发表时间：
2016
影响因子：
2.7
通讯作者：
Tomohiro Miyatake
中科院分区：
文献类型：
--
作者：
H. Tamiaki;K. Tsuji;Masaki Kuno;Y. Kimura;Hiroaki Watanabe;Tomohiro Miyatake
邻苯二甲酸甲酯与邻苯二甲酸甲酯的Wittig反应得到了含多种3-烯基的邻苯二甲酸甲酯作为叶绿素-a的半合成模型。3-取代基从与氯π体系的共面构象中围绕c3 - c31键旋转，将最红可见吸收最大值移动到更短的波长。模型实验表明，天然携带叶绿素的3-乙烯基会采取类似的旋转体来控制其固有位点能量。
Wittig reaction of methyl pyropheophorbide-dpossessing the 3-formyl group gave readily methyl pyropheophorbides-abearing a variety of 3-alkenyl groups as semi-synthetic models of chlorophyll-a. The 3-substituents rotated around the C3–C31bond from the coplanar conformation with the chlorin π-system, moving the redmost visible absorption maxima to a shorter wavelength. The model experiments showed that natural chlorophyll-acarrying the 3-vinyl group would take a similar rotamer to control its intrinsic site energy.
1.9 Å 分辨率下释氧光系统 II 的晶体结构
影响因子：
64.8
作者：
Umena Y.;Kawakami K.;Shen J.-R.;Kamiya N.
通讯作者：
Kamiya N.