Chinese Journal of Organic Chemistry >
Modifications for Peripheral Structures of Purpurin-18 and Synthesis of Chlorophyllous Chlorin Derivatives
Received date: 2013-05-03
Revised date: 2013-07-14
Online published: 2013-07-19
Supported by
Project supported by the National Natural Science Foundations of China (No. 21272048) and the Project of Shandong Applied Reaearch Centre of Gold Nano-technology (2011).
Purpurin-18 methyl ester was used as a starting material, and the modifications for the structure on the terminal of its N21-N23-axis were completed making use of electron-richous properties of C (3)-vinyl group by various reactions including oxidation, reduction, electrophilic addition and 1, 3-polar cycloaddition. The substituted groups, which could conjugated with macrocyclic chromophore in different form, were introduce to 3-position on the periphery, respectively. The synthesis of 11 unreported chlorophyllous chlorins with basic skeloton of purpurin-18 was accomplished and their chemical structures were characterized by elemental analysis, UV, IR and 1H NMR spectra. The influence of peripheric structure of purpurin-18 on their electronic spectrum was discussed and the possible mechanisms about corresponding reactions were tentatively proposed.
Key words: chlorophyll-a; chlorin; purpurin-18; chemical modification; synthesis
Liang Boying , Liu Yang , Xu Xisen , Jin Yingxue , Qi Caixia , Wang Jinjun . Modifications for Peripheral Structures of Purpurin-18 and Synthesis of Chlorophyllous Chlorin Derivatives[J]. Chinese Journal of Organic Chemistry, 2013 , 33(11) : 2357 -2366 . DOI: 10.6023/cjoc201305006
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