Synthesis of some 2-substituted-thioxanthones
✍ Scribed by Jung-Kyen Moon; Jung-Won Park; Woo Song Lee; Young-Jin Kang; Hyun-A Chung; Mi-Seon Shin; Yong-Jin Yoon; Ki Hun Park
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1999
- Tongue
- English
- Weight
- 427 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
This paper presents the synthesis of 2‐amino‐, 2‐acetamido‐ and 2‐benzamidothioxanthones and their 10,10‐dioxides.
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Photophysics and Photoreactivity of Substituted Thioxanthones -(to predict their behavior as photoinitiators in photopolymerization systems; electron-donor substituents at C-2 lead to high fluorescence quantum yields, red shifts in the emission spectra and long singlet lifetimes). -(NEUMANN,
## Abstract The novel 3‐nitro‐9‐oxo‐9__H__‐xanthene‐ and 3‐nitro‐9‐oxo‐9__H__‐thioxanthene‐l‐carboxylic acids **2a–d** were prepared by intramolecular acylation of 3‐aryloxy‐ and 3‐arylthio‐5‐nitrophthalic anhydrides **1** (__Scheme__). The 3‐nitro group was readily substituted by O‐ and S‐nucleoph
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