کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
28799 | 44093 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of photochromic 2,3-bis(5-methyl-2-phenyl-4-thiazolyl)-1,4-naphthoquinone derivatives
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
2,3-Bis(5-methyl-2-phenyl-4-thiazolyl)-1,4-naphthoquinone 1-O, its monoethylene acetal 2-O and methylated derivatives 3-O and 4-O were synthesized and their photochromic properties were investigated. While bisarylnaphthoquinone 1-O was nonphotochromic, its monoacetal 2-O and methylated derivatives 3-O and 4-O displayed good photochromism. Among them, the isomer 4-O recorded a remarkable diastereomeric excess (98.40%) with high conversion ratio (96.20%) upon UV irradiation.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 219, Issue 1, 5 March 2011, Pages 58–61
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 219, Issue 1, 5 March 2011, Pages 58–61
نویسندگان
Mahmut Kose, Çiğdem Yıldırım Şekerci, Kazushi Suzuki, Yasushi Yokoyama,