Phenylhydroxamic acid

Thionyl chloride/pyridine treatment of oximes (557) is believed not to proceed via an intermediate like (558) in the generation of 1,2-benzisoxazoles, but by a chloramine intermediate (Scheme 170). A similar reaction of an A-phenylhydroxamic acid generated a benzisoxazolinone via a proposed chloramine intermediate (Scheme 170) (77AJC1847). 

Allyl sulfones formed from allyl sulfinates (cf. equation 1) can easily tautomerize to give a, /J-unsaturated sulfones26 in cases for which R1, R2 are part of an (hetero) aromatic system, this tautomerization occurs spontaneously. Similarly, sulfinic acid esters from jV-phenylhydroxamic acids as reactive intermediates rearrange to give o-(major part) and p-sulfonylanilines (minor part)27 ... 

Cu2+ to Zn2+, irrespective of the nature of the ligand used, The stability constants of a few divalent metals with A-aryl o-substituted phenylhydroxamic acids are tabulated37 in Table 1. 

Hydroxyisoxazolidines.1 The reaction of phenylhydroxamic acid with cro-tonaldehyde in methanol results in a mixture of 3- and 5-hydroxyisoxazolidines (1 and 2) in which the former isomer predominates. The rate of this reaction is... 

Reaction of N-phenylhydroxamic acids (1) with vinyl acetate cat-suits in N-acylindoles (2) via a hetero-Cope rearrangement of an... 

Compound 82, containing a deprotonated bridging A-hydroxyglutarimide, was obtained in an unusual hydroxylamine elimination and cyclization reaction upon reaction of lb with glutaroddiydroxamic acid (132). Even four distinct hydroxamate binding modes were observed in a heptanuclear Ni(ll) complex with 2-(dimethylamino)phenylhydroxamic acid (2-dmAphaH), [Ni7(2-dmAphaH-l)2 (2-dmApha)g(H20)2]S04- I5H2O (133). 

R. J. Phillips and J. S. Fritz, Synthesis and analytical properties of an N-phenylhydroxamic acid resin. Anal. Chim. Acta, 121,225,1980. 

Ti " forms a ternary complex with pimetyl-bis-lV-phenylhydroxamic acid (L) and NCS withTi L NCS ratio of 2 2 3. ... 

Benzoyl hyd roxyl amine N-Benzoylhydroxylamine Hydroxylamine, N-benzoyl Phenylhydroxamic acid Empirical C7H7NO2 Formula CeHsCONHOH... 

Phenyl hydride. See Benzene Phenylhydroxamic acid. See N-Hydroxybenzamide Phenyl hydroxide. See Phenol Phenylhydroxyacetic acid a-Phenylhydroxyacetic acid. See Mandelic acid Phenyl-2-hydroxybenzoate. See Phenyl salicylate... 

Polyamides with bound imidazole and phenylhydroxamic acid as catalysts... 

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