scheme16
![The recent advances in the contribution of chiral triarylmethanes and tetraarylmethanes with organocatalysts](https://image.oaes.cc/53e9c843-cbb5-4e58-8e2c-d084073bfdea/202311.scheme.16.jpg)
Scheme 16. Enantioselective Friedel-Crafts alkylations of 3-hydroxy-3-indolyloxindole 16a, HP-β-CD = hydroxypropyl-β-cyclodextrin.
Scheme 16. Enantioselective Friedel-Crafts alkylations of 3-hydroxy-3-indolyloxindole 16a, HP-β-CD = hydroxypropyl-β-cyclodextrin.
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