کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1324913 1499928 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volumes 708–709, 15 June 2012, Pages 25–30
نویسندگان
, , , , , ,