Selectivity of the bulky proton-containing reagent N-methyl-N,O-bis(trimethylsilyl)hydroxylamine in the formation of nitrones.

N-(dialkylphosphinoyl)hydroxylamines : P

N-(dialkylphosphinoyl)hydroxylamines : Preparation using N,O-bis(trimethylsilyl)hydroxylamine and migration of simple alkyl groups in the rearrangements of their O-p-nitrobenzenesulphonates

✍ Martin J.P. Harger; P.Andrew Shimmin 📂 Article 📅 1992 🏛 Elsevier Science 🌐 French ⚖ 847 KB

Abstruct : Treatment of &,P(O)Cl with MesSiNI-IOSiM~ gives Pr$P(0)NHOSiMes. which is desilylated by methanol giving P&P(O)NHOH. The 0-p-nitrobenz.enesulphonyI derivative of this rearranges with KOBu' in BuYIH, an isopropyl group migrating from P to N and the phosphonamidate R'P(O)(OBu?NIIpi being fo