Acyclic diaminocarbene complexes of palladium obtained by intermolecular hydroamination of a metal bound isonitrile moiety using secondary amines

Chandan Singh, A. P. Prakashama, Manoj Kumar Gangwara, Raymond J. Butcherb, Prasenjit Ghosh
2018 Zenodo  
Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India E-mail: pghosh@chem.iitb.ac.in Fax: 91-22-25723480 Department of Chemistry, Howard University, Washington DC 20059, USA Manuscript received 28 June 2018, accepted 11 July 2018 A series of palladium complexes supported over acyclic diaminocarbene (ADC) ligands were conveniently obtained by the hydroamination of a metal bound isonitrile moiety. In particular, the hydroamination reaction using various
more » ... dary amines namely, pyrrolidine, morpholine and piperidene on a palladium isonitrile derivative, cis-[(2,6-i-Pr2C6H3)NC]2PdCl2, yielded the desired palladium acyclic diaminocarbene (ADC) complexes of the type, cis-[(R1NH)(R2)methylidene]PdCl2(CNR1) [R1 = 2,6- i-Pr2C6H3: R2 = NC4H8 (1); NC4H8O (2); NC5H10 (3)], under ambient reaction conditions in moderate to good yields (ca. 68– 73%). The structural characterization of the palladium complexes (1-3) attested to the formation of the metal bound acyclic diaminocarbene ligand via an intermolecular hydroamination reaction on the metal bound isonitrile moiety in a palladium pre­cursor complex.
doi:10.5281/zenodo.5638501 fatcat:oberkbmtsfcfjjrtqpdrk2xzji