High-Efficiency Synthesis and Properties of Latent Pigment Red 272DPP-BOC by Microwave Irradiation
High-Efficiency Synthesis and Properties of Latent Pigment Red 272DPP-BOC by Microwave Irradiation作者机构：Department of Applied Chemistry Faculty of Engineering Shibaura Institute of Technology Tokyo Japan Department of Chemistry Aichi University of Education Kariya Japan Nuclear Science and Engineering Center Sector of Nuclear Science Research Japan Atomic Energy Agency Naka-gun Ibaraki Japan
出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)
年 卷 期：2020年第11卷第3期
页 面：195-203页
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题：Latent Pigment Diketopyrrolopyrrol Pigment Red 272 High Efficiency Synthesis Microwave Irradiation Single-Crystal X-Ray Analysis
摘 要：A high-efficiency synthesis method for a latent pigment of red pigment diketo-pyrrolo-pyrrole (Pig. Red 272:272DPP), which is important as a functional organic pigment, was investigated, and the investigation results revealed that irradiation of microwaves (MWs) for several seconds to 272 DPP in NMP (N-methyl-2-pyrrolidone) solvent yielded DPP latent pigment (272DPP-BOC) at a high yield of 86.2%. Two kinds of latent-pigment crystals, namely, red and yellow, were obtained by recrystallization, and it was found that the fluorescence-emission properties of the two kinds differ significantly. Single-crystal X-ray structural analysis showed that the difference in the fluorescence-emission properties of the two types is derived from the difference in their crystal structures.
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