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Abstract (a) The synthesis of 2,4,6‐trioxo‐1, 3‐di‐tributylstannyl‐hexahydropyrimidine is described. (b) Trimethyltin hydride is found to add in a photochemical reaction to the terminal double bond of diethyl allyl malonate and allyl methyl malonate, giving respectively diethyl‐(3‐trimethylstannylpropyl)‐ ( 1 ) and diethyl‐(3‐trimethylstannylpropyl) ( 2 ) methyl‐malonates. Treated with urea under the usual conditions, ( 1 ) and ( 2 ) yield organostannyl barbituric acids.
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Maire et al. (1971) studied this question.
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