Sajiki, Hironao published the artcileThe Formation of a Novel Pd/C-Ethylenediamine Complex Catalyst: Chemoselective Hydrogenation without Deprotection of the O-Benzyl and N-Cbz Groups, Recommanded Product: (E)-1-Cinnamylpiperazine, the publication is Journal of Organic Chemistry (1998), 63(22), 7990-7992, database is CAplus.
A Pd/C catalyst formed an isolable complex with ethylenediamine employed as the catalytic poison via one-to-one interaction between Pd metal and ethylenediamine, and this complex catalyst [Pd/C(en)] chemoselectively hydrogenated a variety of reducible functionalities such as olefin, acetylene, nitro, benzyl ester, and azido in the presence of an O-benzyl or N-Cbz protective group. These findings reinforce the versatility potential of O-benzyl and N-Cbz as protective groups in organic synthesis, and the Pd/C(en) catalyst has been identified as a novel and chemoselective catalyst for the hydrogenation.
Journal of Organic Chemistry published new progress about 87179-40-6. 87179-40-6 belongs to piperazines, auxiliary class Benzenes, name is (E)-1-Cinnamylpiperazine, and the molecular formula is C13H18N2, Recommanded Product: (E)-1-Cinnamylpiperazine.
Referemce:
https://en.wikipedia.org/wiki/Piperazine,
Piperazines – an overview | ScienceDirect Topics