Umpolung of Reactivity of Lithium Trimet
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Raffaele Saladino; Luigi Stasi; Rosario Nicoletti; Claudia Crestini; Maurizio Bo
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Article
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1999
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John Wiley and Sons
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English
⚖ 240 KB
The nucleophilic addition of TMSC(Li)N 2 at the low reactive the nucleophile mainly (methyl, chloromethyl or halogen) or completely (isopropyl) toward the C-5 position. The fine-C-5 position of the uracil ring of C-6 substituted uracil derivatives is reported. The ratio of C-5 versus C-6 tuned subst