S1 Supporting Information Polymer based heterogeneous reusable catalyst for the synthesis of benzoyl fumerate from aldehyde and acetylenedicarboxylate BishwapranKashyap and ProdeepPhukan Department of Chemistry, GauhatiUniversity, Guwahati-781014, Assam, India Typical experimental procedure for polymer catalyzed synthesis of benzoyl fumarate: A solution of DMAD (0.142 g, 1 mmol) and 4-nitrobenzaldehyde (0.045 g, 1 mmol) in anhydrous DME (5 mL) was cooled to 0 °C under N 2 . PVPEVB (15 wt%) was then added and the reaction was stirred at room temperature for 8 hour. After the completion of the reaction the mixture was filtered and the residue was washed with DCM. The combined filtrate was concentrated and purified using column chromatography to get the pure product 1e with 80% yield. Experimental Data Dimethyl (2E)-2-benzoylbut-2-enedioate (1a) 2, 3,6,7 : Colorless crystalline solid. mp: 79-81 °C. IR (KBr, cm -1 ): ν 1207, 1261, 1423, 1681, 1728, 2306, 2985, 3055. 1 H NMR (300MHz, CDCl 3 , TMS): δ 3.64 (s, 3H), 3.79 (s, 3H), 7.11 (s, 1H), 7.3-7.55 (m, 2H), 7.56-7.65 (m, 1H), 7.7-7.98 (m, 2H). 13 C NMR (75 MHz, CDCl 3 , TMS): δ 52.49, 53.29, 128.66, 128.82, 130.47, 133.91, 135.47, 145.21, 163.58, 164.18, 192.20.
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Supporting Information Polymer based heterogeneous ...10.1007/s00706-015-1531... · Supporting Information Polymer based heterogeneous reusable catalyst for the synthesis of benzoyl
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S1
Supporting Information
Polymer based heterogeneous reusable catalyst for the synthesis of
benzoyl fumerate from aldehyde and acetylenedicarboxylate
BishwapranKashyap and ProdeepPhukan
Department of Chemistry, GauhatiUniversity, Guwahati-781014, Assam, India
Typical experimental procedure for polymer catalyzed synthesis of benzoyl
fumarate: A solution of DMAD (0.142 g, 1 mmol) and 4-nitrobenzaldehyde (0.045 g, 1
mmol) in anhydrous DME (5 mL) was cooled to 0 °C under N2. PVPEVB (15 wt%) was
then added and the reaction was stirred at room temperature for 8 hour. After the
completion of the reaction the mixture was filtered and the residue was washed with
DCM. The combined filtrate was concentrated and purified using column
chromatography to get the pure product 1e with 80% yield.