Mixed Metal Phospho-Sulfates for Acid Catalysis
نویسندگان
چکیده
منابع مشابه
Hydroamination reactions by metal triflates: Brønsted acid vs. metal catalysis?
Catalytic hydroamination reactions involving the addition of carboxamides (X = CO), carbamates (X = CO(2)) and sulfonamides (X = SO(2)) to unactivated C=C bonds are briefly reviewed. Development in this field of catalytic research is briefly charted, followed by a discussion of possible mechanisms, including arguments to support the operation of both metal and Brønsted acid catalysis in these s...
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A simple and mild one-pot three-component reaction for the preparation 1,4-dihydropyridines has been developed from various aldehyde substrates, 1,3-dicarbonyl compounds (dimedone) and ammonium acetate (Hantzsch method) in the presence of a catalytic amount of phospho sulfonic acid (PSA) as an efficient and heterogeneous solid acid in EtOH at room temperature. Preparation of PSA is straightforw...
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ژورنال
عنوان ژورنال: MRS Proceedings
سال: 1997
ISSN: 0272-9172,1946-4274
DOI: 10.1557/proc-497-191