scheme54

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

Scheme 54. Spirolactonization reaction of isatins 106 with α, β-unsaturated butenolides 109. This figure is used with permission from the Royal Society of Chemistry[131].

Chemical Synthesis
ISSN 2769-5247 (Online)

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All published articles are preserved here permanently:

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