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The application of the new type grignard reagent derived from ethyl α-(tert-butylsulfinyl)acetate to the synthesis of α,β-unsaturated esters.

✍ Scribed by Junzo Nokami; Norio Kunieda; Masayoshi Kinoshita


Book ID
104214018
Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
163 KB
Volume
16
Category
Article
ISSN
0040-4039

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✦ Synopsis


Recently, we have reported that a new type Grignard reagent derived from ethyl a-phenylsulfinylacetate and alkylmagnesium halides has a good reactivity at the a-carbon atom toward aldehydes and ketones to give the corresponding


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Asymmetric 1,4 addition of Grignard reag
✍ Giuliana Cardillo; Luca Gentilucci; Alessandra Tolomelli; Claudia Tomasini 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 720 KB

The synthesis of enantiomerically enriched a-amino acids is described, by means of the diastereoselective conjugate addition of Grignard reagent to (S)-2-acetamidoacrylic ethoxycarbonylphenyl-methyl ester 1 and its N-Boo derivative 5 in the presence of Lewis acids. The addition of magnesium organocu