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Archive for the ‘Chalcones’ Category

[2+2] and [4+2] cycloadducts

Posted by naturalproductman on June 5, 2011

Ling-Yi Kong and co-workers at China Pharmaceutical University have reported in Organic Letters on the isolation of [2+2] and [4+2] cycloaddition dimers dubbed katsumadain C and calyxin Y, respectively.



OL paper

Posted in Chalcones, Dimer | Leave a Comment »

Sumadain A Synthesis

Posted by naturalproductman on November 2, 2009

Yong Rok Lee and co-worker at Yeungnam University in Korea have recently published in Tetrahedron on the synthesis of sumadain A in one step from 2,4,6-trihydroxyacetophenone and citral.

sumadain A


Tetrahedron Paper

Posted in Cascade Reactions, Chalcones, Methodology, Organocatalytic, Sesquiterpenes | Leave a Comment »