Synthesis of 13 C labelled unsymmetrical
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L. Breau; M. M. Kayser
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Article
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1988
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John Wiley and Sons
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French
โ 398 KB
Methylmaleic (citraconic) and ethoxymaleic anhydrides labelled with 1 3 C a t C-4, and phenylmaleic anhydride labelled at C-1 were prepared in excellent yields from inexpensive starting materials. methodology described here can be applied i n a synthesis of a variety of substituted maleic anhydrides