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ChemInform Abstract: The Improved Synthesis, Diels—Alder Reactions, and Desulfuration of Trithio-1,8-naphthalic Anhydride.

✍ Scribed by Tian-Bao Huang; Xuhong Qian; Zhi-Fu Tao; Ke Wang; Gong-Hua Song; Ling-Fei Liu

Publisher
John Wiley and Sons
Year
2010
Weight
35 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis

The Improved Synthesis, Diels-Alder Reactions, and Desulfuration of Trithio-1,8-naphthalic Anhydride.

-Two improved syntheses of the title trithioanhydride (II) starting from the corresponding oxygen analogue (I) are described. Anhydride (II) undergoes Diels-Alder reactions with various electron-deficient alkenes to furnish novel fused S-heterocycles [cf. (IV), (V), (VII), (IX), (XI), (XIII)]. Moreover, it is found that compound (II) undergoes a novel gradual desulfurization-dimerization [→(XIV)-(XVI)]. -(HUANG,

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The improved synthesis, Diels-Alder reac
The improved synthesis, Diels-Alder reactions, and desulfuration of trithio-1,8-naphthalic anhydride
✍ Tian-Bao Huang; Xuhong Qian; Zhi-Fu Tao; Ke Wang; Gong-Hua Song; Ling-Fei Liu 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 174 KB 👁 2 views

In the presence of a strong Lewis base, such as Et 3 N, trithio-1,8-naphthalic anhydride ( 3) is easily oxidized. Two improved syntheses of trithio-1,8naphthalic anhydride (3) are described. Trithio-1,8-naphthalic anhydride (3) undergoes Diels-Alder reactions with electron-deficient alkenes to give