scheme30

Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons

Scheme 30. Organocatalytic 1,3-dipolar cyclization of butyrolactone-derived cyclic imino esters 57 and alkylidene pyrazolones 60. This figure is used with permission from Wiley-VCH Verlag[89].

Chemical Synthesis
ISSN 2769-5247 (Online)

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All published articles are preserved here permanently:

https://www.portico.org/publishers/oae/