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- W1999948107 abstract "The reductive carbonylation of o-nitrobenzylalcohols, o-NO2C6H4CR1R2OH [R1 R2 H (1); R1 R2 CH3 (2); R1 H, R2 CH3 (3); R1 H, R2 C6 H5 (4)], catalyzed by ruthenium and palladium-based catalytic systems gives the corresponding 1,4-dihydro-2H-3,1-benzoxazin-2-one derivatives, 1a-4a. Reaction conditions used were 20–60 atm of carbon monoxide and 100–170°C. The palladium catalyst has been shown to be by far superior to the ruthenium catalyst in this reaction as far as selectivity is concerned. By carbonylation of o-nitrophenethylalcohol (5) with the palladium system as catalyst a mixture of the monomeric 5a and dimeric 5b cyclic carbamates has been obtained." @default.
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- W1999948107 date "1993-06-01" @default.
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- W1999948107 title "Metal catalyzed deoxygenation by carbon monoxide of o-substituted nitrobenzenes. Synthesis of 1,4-dihydro-2H-3,1-benzoxazin- 2-one derivatives" @default.
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- W1999948107 doi "https://doi.org/10.1016/0022-328x(93)83021-m" @default.
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