3 years ago

Catalyst-Enabled Scaffold Diversity: Highly Chemo- and Stereoselective Synthesis of Tricyclic Ketals and Triarylmethanes

Catalyst-Enabled Scaffold Diversity: Highly Chemo- and Stereoselective Synthesis of Tricyclic Ketals and Triarylmethanes
Jia-Yu Liao, Qijian Ni, Yu Zhao
The first catalytic cascade reaction of activated isocyanides with para-quinone methide-aryl esters is presented. Catalyst-enabled divergent pathways have also been achieved to deliver skeletally diverse products. While Ag catalysis leads to an unprecedented highly diastereoselective synthesis of tricyclic ketals, a simple procedure employing Cu catalysis produces oxazole-containing triarylmethanes in high efficiency through an unexpected C–C bond cleavage.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01851

DOI: 10.1021/acs.orglett.7b01851

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