Journal
ORGANIC LETTERS
Volume 11, Issue 17, Pages 3906-3908Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol9014893
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- Ministry of Education, Culture, Sports, Science and Technology, Japan
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Cyclotrimerization of triynes branched by a nitrogen atom of 2-aminophenol yielded planar-chiral tripodal cage compounds. When a cationic Rh-Me-DUPHOS catalyst was used, the cycloadducts were obtained in high yield and excellent ee, and a macrocyclic compound with a [15]cyclophane system was also obtained. This method can be further applied to the synthesis of a triarmed pyridinophane by the intramolecular reaction of a diyne-nitrile.
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