A new class of metal-free catalysts for direct diastereo- and regioselective Mannich reactions in aqueous media
Autor: | Jiwen Cai, Guang-Xin Lin, Zhi-Ya Hu, Yin-Su Wu |
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Rok vydání: | 2004 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 45:8949-8952 |
ISSN: | 0040-4039 |
DOI: | 10.1016/j.tetlet.2004.09.174 |
Popis: | Camphor sulfonic acid is an efficient catalyst for Mannich reactions of benzaldehyde, aniline and various ketones in aqueous media, with diastereo- or regioselectivities. Meanwhile, three sulfonated amino acids can catalyze the same type of reactions effectively with high diastereo- or regioselectivities. |
Databáze: | OpenAIRE |
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