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Sterically Hindered Carbonyl O-Oxides and Dioxiranes − (6-tert-Butyl-2,3,4-trimethylphenyl)phenylcarbonyl O-Oxide and (6-tert-Butyl-2,3,4-trimethylphenyl)phenyldioxirane

✍ Scribed by Kerstin Schroeder; Wolfram Sander

Book ID
102177410
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
229 KB
Volume
2005
Category
Article
ISSN
1434-193X

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✍ Klaus Diemert; Wilhelm Kuchen; Wolfgang Poll; Frank Sandt 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 458 KB 👁 1 views

By reaction of RP(O)Cl 2 with RP(O)(OSiMe 3 ) 2 , phosphonic with N-benzyloxycarbonylglycine (4) in methanol affords strong evidence that in the first step of peptide synthesis with anhydrides (RPO 2 ) 3 (R = tBu, 2-methylphenyl, 2,4,6-trimethylphenyl) 1a؊c are conveniently obtained. In contrast to