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Ligand-free Suzuki–Miyaura reactions in PEG 300

✍ Scribed by Aires da Conceição Silva; Jaqueline Dias Senra; Lucia C.S. Aguiar; Alessandro B.C. Simas; Andréa Luzia F. de Souza; Luiz Fernando Brum Malta; O.A.C. Antunes

Book ID
104097768
Publisher
Elsevier Science
Year
2010
Tongue
French
Weight
204 KB
Volume
51
Category
Article
ISSN
0040-4039

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✦ Synopsis

In this work, we present ligand-free Suzuki cross-coupling reactions in PEG 300 under thermal conditions at 55 °C with good yields of conversion; better results were obtained with low reaction time. In 1 hour, 1iodo-4-nitrobenzene and phenylboronic acid reached 98% of the yield and 9700 of TON. Better results were obtained with Pd(0) sources. The reaction system was recycled up to three times with good activity.

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Ligand-free Suzuki-Miyaura Cross-Couplin
Ligand-free Suzuki-Miyaura Cross-Coupling Reactions of Aryltriazenes with Arylboronic Acids
✍ Guangming Nan; Fanghua Zhu; Zhijun Wei 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 90 KB 👁 1 views

## Abstract The boron trifluoride induced Suzuki‐Miyaura cross‐coupling of aryltriazenes with arylboronic acids catalyzed by Pd(OAc)~2~ without added ligands has been achieved for the first time. The reactions performed at room temperature under an argon atmosphere give biaryls in good to excellent