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Deprotection of N-Nosyl-α-amino Acids by Using Solid-Supported Mercaptoacetic Acid

✍ Scribed by Rosaria De Marco; Maria Luisa Di Gioia; Antonella Leggio; Angelo Liguori; Maria Caterina Viscomi

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
239 KB
Volume
2009
Category
Article
ISSN
1434-193X

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✍ Domenico Albanese; Dario Landini; Vittoria Lupi; Michele Penso 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 334 KB 👁 1 views

N-(2-Nitrophenylsulfonyl)-(o-NBS-AA-OMe, 4) and N-(4-Nitrophenylsulfonyl)-α-amino acid methyl esters (p-NBS-AA-OMe, 5) were N-alkylated with a variety of alkyl halides 6 under solid-liquid phase-transfer catalysis (SL-PTC) condi-Scheme 1. Preparation of N-alkylated α