Chiral Tetraazacalix-Triazine Derivatives as Organocatalysts for Asymmetric Direct Aldol Reactions: Synthesis and Enantioselective Evaluation
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Novel tetraazacalix derivatives were synthesized and evaluated for their catalytic performance in direct asymmetric aldol reactions carried out in organic solvents. Chiral functionalities were introduced onto the tetraazacalix[2]arene[2]triazine and tetraazaca... ...