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Hydroformylation of allyl ethers. A study of the regioselectivity using rhodium catalysts

✍ Scribed by Nuria Ruiz; Alfonso Polo; Sergio Castillón; Carmen Claver

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
124 KB
Volume
137
Category
Article
ISSN
1381-1169

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✦ Synopsis

The hydroformylation of different substituted allyl benzyl ethers is studied using the precursor catalytic system w Ž

influence of the phosphorus auxiliary ligands on the isomerizationrhydroformylation processes is analyzed. High yields and Ž . low regioselectivities are obtained in the hydroformylation of allyl benzyl ether 1 using both P O-o-t-BuC H and PPh .

6 4 3 3 4-Benzyloxy-3-methyl-butanal 8 and 4-benzyloxy-2-methyl-butanal 11 were obtained in good to excellent yields, starting from benzyl-2-metallyl ether 2 and benzyl-2-buthenyl ether 3, respectively.

📜 SIMILAR VOLUMES

Highly Efficient Rhodium Catalysts for t
Highly Efficient Rhodium Catalysts for the Asymmetric Hydroformylation of Vinyl and Allyl Ethers using C1-Symmetrical Diphosphite Ligands
✍ Aitor Gual; Cyril Godard; Sergio Castillón; Carmen Claver 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 479 KB 👁 2 views

## Abstract Here, we describe the successful application of novel glucofuranose‐derived 1,3‐diphosphites in the rhodium‐catalysed asymmetric hydroformylation of vinyl acetate, 2,5‐dihydrofuran and 2,3‐dihydrofuran. In the hydroformylation of vinyl acetate, total regioselectivity and high __ee__ (up