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Diastereoselective synthesis of α-alkyl-β-hydroxy thioacetals by chelation-controlled addition to α-hydroxy ketene thioacetals

✍ Scribed by Toshio Sato; Masaki Nakakita; Satoshi Kimura; Tamotsu Fujisawa

Book ID
108382707
Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
288 KB
Volume
30
Category
Article
ISSN
0040-4039

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✍ Anna Bernardi; Silvia Cardani; Cesare Gennari; Giovanni Poli; Carlo Scolastico 📂 Article 📅 1985 🏛 Elsevier Science 🌐 French ⚖ 190 KB

MgBr mediated addition of to A'and Methyl &-methylthio propionate silylketene acetal o(,p-alkoxy aldehydes is highly 3,4 syn-selective (18:l). syn-d-methylene$-hydroxy-s-alkoxy esters (6) and (8) are synthesized. We recently reported that I butyIP-dimethylamino propionate, a synthetic equivalent of