- An expedient and divergent tandem one-pot synthesis of pyrimidin-2,4-diones using the blaise reaction intermediate
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A novel divergent tandem one-pot method for the synthesis of 3,5,6-trisubstituted 1H-pyrimidin-2,4-dione derivatives is developed. In the presence of 10 mol % of Cu(OAc)2, the α-substituted Blaise reaction intermediates (R2 ≠ H) reacted with isocyanates chemoselectively to afford pyrimidin-2,4-diones, whereas the α-unsubstituted Blaise reaction intermediate (R2 = H) showed a propensity to be a C-nucleophile toward electrophiles, permitting the installation of different functionalities at the 5-position through sequential tandem reactions.
- Chun, Yu Sung,Xuan, Zi,Kim, Ju Hyun,Lee, Sang-Gi
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supporting information
p. 3162 - 3165
(2013/07/26)
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