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2004
Pyrimidine derivatives
R 0510
Effect of High Pressure on Biginelli Reactions. Steric Hindrance and Mechanistic
— The effect of high pressure on the three-component Biginelli con45- 175 Considerations.
densation between ethyl acetoacetate (I), an aldehyde (II) and an urea derivative is investigated. Reactions with unhindered aldehydes are little sensitive to pressure, whereas increasing steric hindrance enhances this sensitivity. — (JENNER, G.; Tetrahedron
Lett. 45 (2004) 32, 6195-6198; Lab. Piezochim. Org., Inst. Chim., CNRS, Univ. Louis
Pasteur, F-67008 Strasbourg, Fr.; Eng.) — Roy
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