3 years ago

Controllable Diastereodivergent Synthesis of Pyrrolo[2,1-a]isoquinolines via Catalytic Intramolecular Acylsulfenylation of Activated Alkenes

Controllable Diastereodivergent Synthesis of Pyrrolo[2,1-a]isoquinolines via Catalytic Intramolecular Acylsulfenylation of Activated Alkenes
Wei-Wei Liao, Wei Liu, Shan-Tao Du, Shu-Yue Wang
A controllable stereoselective synthesis of tetrahydropyrrolo[2,1-a]isoquinoline derivatives bearing a sulfur moiety was demonstrated with high diastereoselectivity through a catalytic intramolecular acylsulfenylation of activated alkenes. This approach involved a catalytic thia-Michael addition triggered intramolecular aldol-type tandem sequence. Both cis- and trans-products can be readily prepared in moderate to high yields with excellent diastereoselectivities in a catalytically atom-economic fashion under the optimized mild reaction conditions.

Publisher URL: http://dx.doi.org/10.1021/acs.joc.7b00551

DOI: 10.1021/acs.joc.7b00551

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