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F. Ilgen – B. Ko¨nig · Reversible Regulation of a Benzamidine-catalyzed Aldol Reaction by CO2
to conversion. To start the reaction, N2 was bubbled through applied like described above. NMR spectra of the reaction
the◦solution for 10 min after initially heating the mixture to mixture were recorded after each cycle to monitor the reac-
60 C for 20 s. To stop the reaction again a CO2 flow was tion progress [19].
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sated by addition of new ACN.
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