A convenient synthesis of tetrazole, precursors of α-dialkylated α-amino acids, by reaction of trimethylsilyl azide with α-dialkylated β-ketoesters
✍ Scribed by Henri-Jean Cristau; Xavier Marat; Jean-Pierre Vors; Jean-Luc Pirat
- Book ID
- 104253308
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- French
- Weight
- 132 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The Schmidt rearrangement using trimethylsilyl azide with various a-dialkylated b-keto esters affords a convenient synthesis of tetrazole, precursors of a-dialkylated a-amino acids.
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## The synthesis of a,a-di&ylated amino acids which contain two adenine or thymine residues in their side chains is presented. In this context, a mild method for the cleavage of hydantoins is introduced. In nature only nucleic acids are capable of molecular replication. Some time ago,1 we demonstr
Cross-ester condensation between N-protected amino acid ester and the lithium enolate prepared from alkyl acetate gave the corresponding b-ketoester in high yield without the formation of the tertiary alcohol that is commonly seen as by-product. This interesting reaction is applicable to the amino a