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Showing 1 to 1 of 1 for “"Nitrogen Ylides"”.
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Preparation of Pyridinium and Diaminocarbonium Barbituric Acid Ylides
Through NMR experiments of the reaction of barbituric acid with carbodiimide, a general synthetic procedure for the preparation of 5-diaminomethylenebarbiturates (DABA) was developed. This procedure is very simple and applicable to the preparation of large quantities of DABA derivatives. Through …