A new method for the preparation of pyrimidines by condensation of B-dicarbonyl compounds, ammonium salts and carbonyl containing substances has been developed. An attractive approach to the synthesis of 1,2\_dihydropyrimidines bearing alkyl or aryl groups consists of the reaction of B-dicarbonyl c
A novel one step synthesis of a dihydropentalene
β Scribed by J. McRae; V.A. Moss; R.A. Raphael
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 191 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4020
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the spectroscopic data for ( 4 ) , ( 3) , ( 2 ) , and ( I ) , n = 3 (see Table I). Whilst the approximate agreement of the C-H stretching frequencies and "C-H coupling constants is not surprising and is no argument for or against the existence of conjugative interaction of the cyclopropane rings in