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Sonogashira cross-coupling reaction of organotellurium dichlorides with terminal alkynes

✍ Scribed by Antonio L Braga; Diogo S Lüdtke; Fabrı́cio Vargas; Ricardo K Donato; Claudio C Silveira; Hélio A Stefani; Gilson Zeni

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
145 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

The Sonogashira cross-coupling reaction of vinylic and heteroaromatic tellurium dichlorides has been explored, yielding the corresponding enynes and 2-alkynyl substituted heteroaromatic compounds. The reaction was carried out with PdCl 2 /CuI as catalysts and triethylamine as base, using methanol as solvent. The reaction proceeded under mild conditions and the cross-coupled products were obtained in good yields and in a stereoconservative manner.

📜 SIMILAR VOLUMES

Palladium-catalyzed cross-coupling react
Palladium-catalyzed cross-coupling reaction of aryl trimethoxysilanes with terminal alkynes
✍ Zhishi Ye; Miaochang Liu; Baoda Lin; Huayue Wu; Jinchang Ding; Jiang Cheng 📂 Article 📅 2009 🏛 Elsevier Science 🌐 French ⚖ 158 KB

A palladium-catalyzed cross-coupling reaction of aryl trimethoxysilanes with terminal alkynes was described. Thus, di-substituted alkynes were prepared in moderate to good yields. The electron-deficient terminal alkynes also worked well in the procedure.