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Journal | Chemistry : A European Journal |
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Date | Accepted/In press - 11 Jul 2017 |
Date | E-pub ahead of print - 11 Jul 2017 |
Date | Published (current) - 18 Sep 2017 |
Issue number | 52 |
Volume | 23 |
Number of pages | 7 |
Pages (from-to) | 12937-12943 |
Early online date | 11/07/17 |
Original language | English |
Chromium(salphen) complex 10 is found to be a catalyst for the preparation of oxazolidinones from epoxides and isocyanates. Using the optimal reaction conditions (1.5 mol % of chromium(salphen) complex 10 at 80 °C in toluene for 4 hours), six epoxides were reacted with five isocyanates, providing 15 oxazolidinones in up to 90 % yield. With electron-deficient isocyanates, cyclotrimerisation of the isocyanate to the corresponding isocyanurates is a competing reaction, showing the importance of matching catalyst activity to that of the substrates.
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