Technical Notes:
1.Used in asymmetric N- -H insertion reaction cooperatively catalyzed by rhodium and chiral spiro phosphoricacids.
2.Used in the chiral spiro phosphoric-acid-catalyzed regioselective and enantioselective C7-F riedel-Crafts alkylation of 4-Aminoindoles with trifluoromethyl ketones.
References:
1. Angew. Chem. Int. Ed. 2011, 50, 1 1483.
2. Org. Lett. 2019, 21, 3538.
Strem