01390nas a2200157   4500008004100000245009900041210006900140260000800209300001600217490000700233520079900240100002001039700002101059700002201080856013001102       2010                        eng d00aHighly stable adamantyl-substituted pincer-ligated iridium catalyst for alkane dehydrogenation0 aHighly stable adamantylsubstituted pincerligated iridium catalys  cMAY  a2702–27090 v293 a<p>The adamantyl-substituted pincer-ligand precursor AdPCP-H [(AdPCP = κ3-C6H3-2,6-(CH2PAd2)2); Ad = 1-adamantyl] has been synthesized by the reaction of 1,3-dibromoxylene with di-1-adamantylphosphine in the presence of triethylamine. Treatment of AdPCP-H with [Ir(COD)Cl]2 (COD = 1,5-cyclooctadiene) affords the pincer-ligated complex (AdPCP)IrHCl, which was crystallographically characterized. Dehydrohalogenation of (AdPCP)IrHCl either with LiBEt3H or with KOtBu, under hydrogen atmosphere, yields the hydrides (AdPCP)IrH2 and (AdPCP)IrH4. (AdPCP)IrH2 catalyzes dehydrogenation of alkanes with a level of activity comparable to that of the previously reported (tBuPCP)IrH2, while it is thermally much more robust than the tBuPCP analogue, as well as iPrPCP or tBuPOCOP pincer complexes.</p>1 aPunji, Benudhar1 aEmge, Thomas, J.1 aGoldman, Alan, S.  uhttps://library.ncl.res.in/content/highly-stable-adamantyl-substituted-pincer-ligated-iridium-catalyst-alkane-dehydrogenation