01693nas a2200169   4500008004100000245007500041210006900116260000800185300002500193490000600218520110700224100002001331700002201351700002301373700002501396856010201421       2017                        eng d00aIron-based nanocatalyst for the acceptorless dehydrogenation reactions0 aIronbased nanocatalyst for the acceptorless dehydrogenation reac  cDEC  aArticle Number: 21470 v83 aDevelopment of sustainable catalytic systems for fundamentally important synthetic transformations and energy storage applications is an intellectually stimulating challenge. Catalytic dehydrogenation of feedstock chemicals, such as alcohols and amines to value-added products with the concomitant generation of dihydrogen is of much interest in the context of hydrogen economy and is an effective alternative to the classical oxidation reactions. Despite a number of homogeneous catalysts being identified for the acceptorless dehydrogenation, the use of high price and limited availability of precious metals and poor recovery of the catalyst have spurred interest in catalysis with more earth-abundant alternatives, especially iron. However, no report has described a reusable iron-based heterogeneous catalyst for oxidant-free and acceptorless dehydrogenation reactions. Here we replace expensive noble metal catalysts with an inexpensive, benign, and sustainable nanoscale iron catalyst for the efficient acceptorless dehydrogenation of N-heterocycles and alcohols with liberation of hydrogen gas.1 aJaiswal, Garima1 aLandge, Vinod, G.1 aJagadeesan, Dinesh1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/iron-based-nanocatalyst-acceptorless-dehydrogenation-reactions01330nas a2200205   4500008004100000022001400041245006100055210005900116260000900175300001400184490000700198520069300205100002200898700001700920700001800937700002600955700002500981700002501006856009301031       2020                        eng d  a0022-326300aIron-catalyzed direct julia-type olefination of alcohols0 aIroncatalyzed direct juliatype olefination of alcohols  cAUG   a9876-98860 v853 a<p>Herein, we report an iron-catalyzed, convenient, and expedient strategy for the synthesis of styrene and naphthalene derivatives with the liberation of dihydrogen. The use of a catalyst derived from an earth-abundant metal provides a sustainable strategy to olefins. This method exhibits wide substrate scope (primary and secondary alcohols) functional group tolerance amino, nitro, halo, alkoxy, thiomethoxy, and S- and N-heterocyclic compounds) that can be scaled up. The unprecedented synthesis of 1-methyl naphthalenes proceeds via tandem methenylation/double dehydrogenation. Mechanistic study shows that the cleavage of the C-H bond of alcohol is the rate-determining step.</p>
1 aLandge, Vinod, G.1 aBabu, Reshma1 aYadav, Vinita1 aSubaramanian, Murugan1 aGupta, Virendrakumar1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/iron-catalyzed-direct-julia-type-olefination-alcohols