ダウンロード数 : ?
ファイル
言語
英語
著者
Saburo Neya Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
内容記述(抄録等)
5,10-Bistrifluoromethyl substituted β-octamethylporphyrins were synthesized via a scrambling side reaction of a dipyrromethane precursor in the presence of a large excess of trifluoroacetic acid. Compared with the trans-analogs, the cis-analogs of meso-trifluoromethyl β-octaalkylporphyrin showed more red-shifted absorption bands. These meso-trifluoromethyl derivatives of β-octaalkylporphyrins underwent smooth metalation, similar to other common porphyrins, however, the corresponding zinc complexes underwent a type of solvolysis, whereby the trifluoromethyl groups were converted into methoxycarbonyl groups by the methanol used as solvent. UV-visible absorption spectra and X-ray crystal structure analyses revealed that the presence of a methoxycarbonyl substituent did not influence the deformation of the molecular framework and its absorption properties; this is because the methoxycarbonyl has a planar and perpendicular geometry, as opposed to the relatively bulky trifluoromethyl substituent.
主題
porphyrin
trifluoromethyl
alkoxycarbonyl
solvolysis
掲載誌名
Molecules
21
252
開始ページ
1
終了ページ
8
ISSN
1420-3049
発行日
2016-02-23
DOI
出版者
MDPI
資料タイプ
学術雑誌論文
ファイル形式
PDF
関連情報
著者版/出版社版
出版社版
業績ID
e29687
部局
総合理工学部