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Rearrangement of unactivated N-alkyl-O-benzoyl hydroxamic acid derivatives with phosphazene bases

✍ Scribed by Andrew J Clark; Yassair S.S Al-Faiyz; Divya Patel; Michael J Broadhurst

Book ID: 104230144
Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 72 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)00062-4

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✦ Synopsis

The phosphazene super bases BTPP 5, P-2-t Bu 6, and P-4-t Bu 7 mediate the rearrangement of unactivated N-alkyl-Obenzoyl hydroxamic acid derivatives 8, 11a-f, 13 and 16 to give 2-benzoyloxy amides 9, 12a-f, 14 and 17. The rate of reaction was found to be dependant upon the steric nature of the N-alkyl substituent.

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