Also known as diphenylethylenediamine, DPEN, 1,2-diphenylethane-1,2-diamine
1,2-Diphenyl-1,2-ethylenediamine, DPEN, is an organic compound with the formula H2NCHPhCHPhNH2, where Ph is phenyl (C6H5). DPEN exists as three stereoisomers: meso and two enantiomers S,S- and R,R-. The chiral diastereomers are used in asymmetric hydrogenation. Both diastereomers are bidentate ligands.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).