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
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