Zinc Oxide as a Useful and Recyclable Catalyst for the One-Pot Synthesis of 2,4,6-Trisubstituted-1,3,5-trioxanes under Solvent-Free Conditions

详细信息    查看全文

• 作者：Reza Tayebee ; Atefeh Hosseini Nasr ; Sima Rabiee ; Elahe Adibi
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：July 17, 2013
• 年：2013
• 卷：52
• 期：28
• 页码：9538-9543
• 全文大小：281K
• 年卷期：v.52,no.28(July 17, 2013)
• ISSN：1520-5045

文摘

Different aliphatic and aromatic aldehydes such as isobutyraldehyde, ethanal, n-propanal, n-butanal, n-hexanal, n-octanal, and substituted benzaldehydes were cyclotrimerized into their corresponding 2,4,6-trialkyl-1,3,5-trioxanes in the presence of commercial bulk zinc oxide at room temperature under neat conditions within a short span of time with high yield and excellent selectivity. Liquid products were formed as a separate phase and were decanted easily, whereas solid products were isolated by simple extraction. Effect of different additives, mol % of catalyst, kind of substrate, and reaction temperature were examined on the progress of cyclotrimerization reaction.