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Kinetics of the reaction of 1,3-Dihyro-l-hydroxy-3-oxo-1,2-benziodoxole with cysteine

✍ Scribed by Walter Wolf; Theresa Wu

Publisher: John Wiley and Sons
Year: 1969
Tongue: English
Weight: 264 KB
Volume: 58
Category: Article
ISSN: 0022-3549
DOI: 10.1002/jps.2600580425

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✦ Synopsis

oxime (Amsx. = 245 mp, log e = 4.02) which indicates an in-plane conformaton (9).

The reason for the different conformations for 1 and 4 is not apparent. The stability of 1 appears to be a unique property associated with the o-trifluoromethyl group and the aldoxime function.

EXPERIMENTAL Nitrone Formation-The procedure of Buchler for the synthesis and isolation of nitrones and o-methyl benzaldoxime ethers was used (7).

o-Trifluoromethylacetophenoae oxime (4)-Compound 4 was prepared by Bachmann's procedure using hydroxylamine hydrochloride in pyridine and absolute ethanol (10). Yield 75x, m.p. 118-120".

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