کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1324913 | 1499928 | 2012 | 6 صفحه PDF | دانلود رایگان |

Silica-supported bismuth(III) chloride (BiCl3/SiO2) acts as as a highly efficient heterogeneous Lewis acid catalyst for the Paal–Knorr pyrrole synthesis in hexane at room temperature. The catalyst exhibited remarkable reusable activity and higher catalytic performance than homogeneous BiCl3. A plausible mechanism for the catalytic action of BiCl3/SiO2 has been introduced.
Silica-supported bismuth(III) chloride (BiCl3/SiO2) acts as as a highly efficient heterogeneous Lewis acid catalyst for the Paal–Knorr pyrrole synthesis in hexane at room temperature. The catalyst exhibited remarkable reusable activity and higher catalytic performance than homogeneous BiCl3. A plausible mechanism for the catalytic action of BiCl3/SiO2 has been introduced.Figure optionsDownload as PowerPoint slideHighlights
► Immobilization of Bi(III) ion onto silica surface.
► Formation of O–BiOCl as stable Lewis acid sites.
► Heterogeneous pyrrole synthesis applicable to a wide range of aniline substrates.
► Low catalyst loading with high activity.
► Catalyst recycled several times due to negligible leaching of the metal.
Journal: Journal of Organometallic Chemistry - Volumes 708–709, 15 June 2012, Pages 25–30