Cetylpyridinium dodecatungstate on fluorapatite: efficient and reusable solid catalyst for solvent-free epoxidation

• Published in: Green chemistry : an international journal and green chemistry resource : GC Vol. 5; no. 5; pp. 491 - 493
• Main Authors: Ichihara, Junko, Kambara, Akihiro, Iteya, Katsuma, Sugimoto, Eiko, Shinkawa, Takeshi, Takaoka, Aki, Yamaguchi, Shunro, Sasaki, Yoh
• Format: Journal Article
• Language: English
• Published: 01.01.2003
• Subjects: alcohols; alkenes; ambient temperature; apatite; catalysts; catalytic activity; cetylpyridinium chloride; epoxidation reactions; epoxides; green chemistry; solvents

We have developed a new catalytic solid phase system for epoxidations using urea–hydrogen peroxide complex (urea–H₂O₂) and cetylpyridinium dodecatungstate ((CetylPy)₁₀ [H₂W₁₂O₄₂]) catalyst on fluorapatite. In the solid phase system epoxidations of cyclic alkenes and allylic alcohols proceeded withou...