scheme29
![Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons](https://image.oaes.cc/81dabbbc-923b-43d2-a26d-fe5689f6999d/5406.scheme.29.jpg)
Scheme 29. Organocatalytic 1,3-dipolar cycloaddition of butyrolactone-derived imino esters 57 and methyleneindolinones 58. This figure is used with permission from the Royal Society of Chemistry[88].
Scheme 29. Organocatalytic 1,3-dipolar cycloaddition of butyrolactone-derived imino esters 57 and methyleneindolinones 58. This figure is used with permission from the Royal Society of Chemistry[88].
All published articles are preserved here permanently:
https://www.portico.org/publishers/oae/