Abstract
AbstractChiral indoline–benzodiazepines were synthesized via an enantioselective Pictet–Spengler‐type reaction catalyzed by chiral imidodiphosphoric acids. A variety of substitution patterns were achieved at room temperature by using 5 mol % catalysts with high yields (up to 97 %) and enantioselectivities (up to 99 % ee).
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