Synthesis of Highly Fluorescent Cationic Chlorophyll-a Derivatives Possessing a p-Aminopyridinio Group at the 31-Position
p-Aminopyridines were oxidatively substituted at the C31-position of methyl pyropheophorbide-a, a chlorophyll-a derivative. The electron-donating p-dimethylamino groups induced silver metallation during the substitution and inhibited the electron-transfer quenching of fluorescence emission in the me...
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Veröffentlicht in: | Bulletin of the Chemical Society of Japan 2021-04, Vol.94 (4), p.1201-1203 |
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creator | Ogasawara, Shin Takahashi, Tatsuya Kitagawa, Yuichi Tamiaki, Hitoshi |
description | p-Aminopyridines were oxidatively substituted at the C31-position of methyl pyropheophorbide-a, a chlorophyll-a derivative. The electron-donating p-dimethylamino groups induced silver metallation during the substitution and inhibited the electron-transfer quenching of fluorescence emission in the metal-free C31-cationic pyridinio adducts prepared by the acidic demetallation of the initially isolated Ag-chlorins. |
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The electron-donating p-dimethylamino groups induced silver metallation during the substitution and inhibited the electron-transfer quenching of fluorescence emission in the metal-free C31-cationic pyridinio adducts prepared by the acidic demetallation of the initially isolated Ag-chlorins.</description><subject>Adducts</subject><subject>Cations</subject><subject>Chlorophyll</subject><subject>Fluorescence</subject><subject>Silver</subject><issn>0009-2673</issn><issn>1348-0634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNptkM9LwzAcxYMoOKdH7wHPmfnRpqm3Ud0mDBTUc0mzdE3pmpq0g_73pmziRb6Hxzf55D3yALgneEFoxB8L5esFxZRgjNMLMCMsEghzFl2C2XSEKE_YNbjxvg6riKN0BsaPse0r7Y2HtoQbs6-aEa6awTrtlW57mMne2NYomFWNdbarxqZBEj5rZ47h6qg9fLfea-9Nu4cSdmh5MK3tRmd2pjUWrp0dOih7GGIgIyjQZrK8BVelbLy-O-scfK1ePrMN2r6tX7PlFikW8x6JJEnLJCYkIlRERSJY0B3XTIiYFWXJpVJJgTVLqcBCx7xMUiZJEStOucCMzcHDybdz9nvQvs9rO7g2ROY0ZnGKw9BAoROlXPiN02XeOXOQbswJzqd286nd_LfdwD-d-UofjApuVhndj7XsZPuX8P_jH8GngcM</recordid><startdate>20210415</startdate><enddate>20210415</enddate><creator>Ogasawara, Shin</creator><creator>Takahashi, Tatsuya</creator><creator>Kitagawa, Yuichi</creator><creator>Tamiaki, Hitoshi</creator><general>The Chemical Society of Japan</general><general>Chemical Society of Japan</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20210415</creationdate><title>Synthesis of Highly Fluorescent Cationic Chlorophyll-a Derivatives Possessing a p-Aminopyridinio Group at the 31-Position</title><author>Ogasawara, Shin ; Takahashi, Tatsuya ; Kitagawa, Yuichi ; Tamiaki, Hitoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-8779f751141284b783128d6e38853bff6acc7b0e392808e56f793a1b5c6268033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adducts</topic><topic>Cations</topic><topic>Chlorophyll</topic><topic>Fluorescence</topic><topic>Silver</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ogasawara, Shin</creatorcontrib><creatorcontrib>Takahashi, Tatsuya</creatorcontrib><creatorcontrib>Kitagawa, Yuichi</creatorcontrib><creatorcontrib>Tamiaki, Hitoshi</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Bulletin of the Chemical Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ogasawara, Shin</au><au>Takahashi, Tatsuya</au><au>Kitagawa, Yuichi</au><au>Tamiaki, Hitoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of Highly Fluorescent Cationic Chlorophyll-a Derivatives Possessing a p-Aminopyridinio Group at the 31-Position</atitle><jtitle>Bulletin of the Chemical Society of Japan</jtitle><date>2021-04-15</date><risdate>2021</risdate><volume>94</volume><issue>4</issue><spage>1201</spage><epage>1203</epage><pages>1201-1203</pages><issn>0009-2673</issn><eissn>1348-0634</eissn><abstract>p-Aminopyridines were oxidatively substituted at the C31-position of methyl pyropheophorbide-a, a chlorophyll-a derivative. The electron-donating p-dimethylamino groups induced silver metallation during the substitution and inhibited the electron-transfer quenching of fluorescence emission in the metal-free C31-cationic pyridinio adducts prepared by the acidic demetallation of the initially isolated Ag-chlorins.</abstract><cop>Tokyo</cop><pub>The Chemical Society of Japan</pub><doi>10.1246/bcsj.20210009</doi><tpages>3</tpages></addata></record> |
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source | Oxford University Press Journals All Titles (1996-Current) |
subjects | Adducts Cations Chlorophyll Fluorescence Silver |
title | Synthesis of Highly Fluorescent Cationic Chlorophyll-a Derivatives Possessing a p-Aminopyridinio Group at the 31-Position |
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