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Longer distance intramolecular hydrogen

There are few experimental examples of longer distance intramolecular hydrogen abstraction. s-Hydrogen transfer forming 1,6-biradicals generally requires that y- and 8-hydrogen atoms be unavailable or unreactive [as, for example, in the p-(o-tolyl) propiophenone 291 (Scheme 6.127)].968... [Pg.320]

The hydroxamic acids also all have very similar O—H bond distances, but they are slightly longer, 0.981 to 0.984 A. This can be attributed to the intramolecular hydrogen... [Pg.31]

An intramolecular SH2 reaction can occur readily through a six-membered cyclic transition state (47). Migration of a hydrogen over longer distances than... [Pg.520]

The intramolecular 0-"0 distance (2.910 A) is slightly longer than the intermolecular O- O distance (2.831 A). The hydrogen atoms were located and both O-H - O bond are bent, the angles being 156° (intramolecular) and 162° (intermolecular). [Pg.321]

See other pages where Longer distance intramolecular hydrogen is mentioned: [Pg.1131]    [Pg.1131]    [Pg.225]    [Pg.328]    [Pg.14]    [Pg.550]    [Pg.31]    [Pg.213]    [Pg.178]    [Pg.550]    [Pg.20]    [Pg.142]    [Pg.563]    [Pg.204]    [Pg.470]    [Pg.294]    [Pg.19]    [Pg.368]    [Pg.683]    [Pg.691]    [Pg.317]    [Pg.457]    [Pg.264]    [Pg.104]    [Pg.164]    [Pg.241]    [Pg.242]    [Pg.12]    [Pg.450]    [Pg.29]    [Pg.15]    [Pg.159]    [Pg.221]    [Pg.711]    [Pg.299]    [Pg.1036]    [Pg.278]    [Pg.114]    [Pg.152]    [Pg.1036]    [Pg.67]    [Pg.273]    [Pg.46]    [Pg.19]    [Pg.495]    [Pg.99]   


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Intramolecular distances

Intramolecular hydrogen

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