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Oxidative coupling and ring opening of furan on Ag(110): Formation of maleic anhydride, benzene, and bifuran

Journal Article · · Journal of the American Chemical Society; (United States)
DOI:https://doi.org/10.1021/ja00055a050· OSTI ID:6566124
;  [1]
  1. Stanford Univ., CA (United States)
TPRS, EELS, and isotope experiments show that furan reacts with active oxygen on Ag(110) to form CO[sub 2], H[sub 2]O, and small amounts of the partially oxidized products maleic anhydride, bifuran, and benzene that evolve between 520 and 560 K. The first step in furan combustion is C-H bond activation by O[sub (a)], followed by O[sub (a)] attack at the [alpha]-carbon at 308 K. [sup 18]O[sub (a)] experiments prove that maleic anhydride is formed via intermediates where the furan ring has been cleaved. This contrasts with mechanisms proposed for maleic anhydride production from furan over VPO catalysts. 36 refs., 12 figs., 2 tabs.
OSTI ID:
6566124
Journal Information:
Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 115:2; ISSN JACSAT; ISSN 0002-7863
Country of Publication:
United States
Language:
English