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Palladium(II) chloride catalyzes the cross-coupling reaction of 2,5-bis-(butyltelluro)-furan and 1-alkynes

✍ Scribed by Gilson Zeni; Cristina W. Nogueira; Dagoberto O. Silva; Paulo H. Menezes; Antonio L. Braga; Hélio A. Stefani; João B.T. Rocha

Book ID
104252939
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
272 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

Palladium(II) chloride catalyzed the cross-coupling reaction of 2,5-bis-(butyltelluro) furan and terminal alkynes yielding both symmetrically and unsymmetrically substituted 2,5-bis-acetylenic furan derivatives. The methodology represents a general and efficient protocol for carrying out the synthesis of furan derivatives with potential biological activities.

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Palladium-phosphine complex catalyzed cross-coupling reaction of 1-methyl-2-pyrrolyl-magnesium bromide and -zinc chloride with organic halides
✍ Akio Minato; Kohei Tamao; Tamio Hayashi; Keizo Suzuki; Makoto Kumada 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 210 KB

1-Methyl-2-pyrrolyl-magnesium bromide and -zinc chloride, which were prepared from I-methyl-Z-pyrrolyllithium with MgBr2 and ZnC12 respectively, reacted with aryl-and heteroaromatic halides to give the corresponding 2-substituted pyrroles in good to excellent yields in the presence of palladium-phos