A Simple and efficient Synthesis of 3,4-Dihydropyrimidin-2-Ones catalysed by Amidosulfonic Acid
2002 ◽
Vol 2002
(1)
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pp. 37-39
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A general and practical route for the synthesis of dihydropyrimidines by the one-pot cyclocondensation of aldehydes, β-ketoesters and urea is described using NH2SO3H as catalyst. Yields and selectivities are significantly better than under classical Biginelli reaction conditions.
Samarium Chloride Catalysed Biginelli Reaction: One-Pot synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones
2002 ◽
Vol 2002
(9)
◽
pp. 436-438
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Keyword(s):
One Pot
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2017 ◽
Vol 61
(4)
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pp. 278
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