- Regioselective synthesis of 6H-pyrano[3,2-e]pyrimidine-2,4-dione
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7-Aryloxymethyl-1,3-dimethyl-6H-pyrano[3,2-e]pyrimidine-2,4-diones (4a- f) were synthesized in 88-92% yields (isolated) by the regioselectively thermal [3s, 3s] sigmatropic rearrangement of 1,3-dimethyl-5-(1-aryloxybut- 2-ynyloxy)pyrimidine-2,4-diones, (3
- Majumdar,Das
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p. 4013 - 4019
(2007/10/03)
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