Efficient, green and solvent-free synthesis of tetrasubstituted imidazoles using SbCl3/SiO2 as heterogeneous catalyst
نویسندگان
چکیده
منابع مشابه
One-pot synthesis of tri- and tetrasubstituted imidazoles using nano-LaMnO3 perovskite-type oxide as reusable heterogeneous catalyst in solvent-free condition
A convenient synthetic method for the synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetra substituted imidazole derivatives, has been developed via one-pot condensation reaction in solvent-free condition when aldehyde, ammonium acetate/amine, and 1,2-diketone are reacted using 0.8 mol% of NP-LaMnO3 at 80 °C under solvent free conditions. Catalyst could be recovered and reused in five reaction c...
متن کاملOne-pot synthesis of tri- and tetrasubstituted imidazoles using nano-LaMnO3 perovskite-type oxide as reusable heterogeneous catalyst in solvent-free condition
A convenient synthetic method for the synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetra substituted imidazole derivatives, has been developed via one-pot condensation reaction in solvent-free condition when aldehyde, ammonium acetate/amine, and 1,2-diketone are reacted using 0.8 mol% of NP-LaMnO3 at 80 °C under solvent free conditions. Catalyst could be recovered and reused in five reaction c...
متن کاملKaolin-SO3H as an efficient catalyst for one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles
Kaolin-SO3H as a new solid acid is prepared via reaction of kaolin and chlorosulfonic acid. This natural based catalyst is very inexpensive and easy available. Imidazoles are an important class of heterocycles being the core fragment of different natural products and biological systems such as anti-allergic, anti-inflammatory, analgesic, antifungal, antimycotic, antibiotic, antiulcerative, anti...
متن کاملKaolin-SO3H as an efficient catalyst for one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles
Kaolin-SO3H as a new solid acid is prepared via reaction of kaolin and chlorosulfonic acid. This natural based catalyst is very inexpensive and easy available. Imidazoles are an important class of heterocycles being the core fragment of different natural products and biological systems such as anti-allergic, anti-inflammatory, analgesic, antifungal, antimycotic, antibiotic, antiulcerative, anti...
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ژورنال
عنوان ژورنال: Journal of Chemical Sciences
سال: 2013
ISSN: 0974-3626,0973-7103
DOI: 10.1007/s12039-013-0450-6