On the acylation reactions of aza-allyl carbanions derived from N-[bis(methylthio)methylene]glycine ethyl ester and N-[bis(methylthio)methylene]benzylamine
✍ Scribed by Carlos Alvarez-Ibarra; Aurelio G Csákÿ; Elena Martinez-Santos; Maria L Quiroga
- Book ID
- 104207652
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 633 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
New aspects of the acylation reaction of the aza-allyl anions derived from l and 2 have becn studied. Under suitable reaction conditions, oxazoles 5, ~,a~lisubstituted c~-acyl--ot-amino acid derivatives 3, and ~,3-didehydroamino acid derivatives 7 can be prepared. A new 1,3-diamino-2-propanol derivative 8 was isolated by reaction of the ('-acyl intermediate derived from N-[bis(methylthio)methylene]-benzylamine 2 and the anion 2-through an in situ addition-cyclocondensation tandem reaction.
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Asymmetric Oxidative Dimerization of the Enolates of N-(Bis(methylthio) methylene)-and N-(Diphenylmethylene)glycine Esters. -A new method for the synthesis of threo 3-aminoaspartates such as (II) via asymmetric oxidative dimerization of title compounds such as (I) is presented. The stereochemical ou