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Amine stereochemical properties

The recent and continuing surge of interest in transition-metal complexes of o ,/3-unsaturated /3-keto amines (/3-amino ketones), especially with respect to their stereochemical properties, has resulted in increased efforts to secure general synthetic procedures for these complexes. Methods of preparation of these complexes have been reviewed recently. Although most of... [Pg.72]

Because of the exceptional reactivity and chemical importance of the amine-chelated organolithium reagents, their stereochemical properties are of special significance. Our interest centered on six points ... [Pg.66]

This paper is concerned with the stereochemical properties of certain genetically related mononuclear complexes in which the coordination number of the central atom or cation is 7, 8, 9, or 10. New results are reported for amine-polycarboxylate chelates of Zr (IV), high spin Fe, and the rare earth ions the chelating agents are ethylendiaminetetraacetic acid (EDTA ... [Pg.135]

Most local anesthetic agents consist of a lipophilic group (eg, an aromatic ring) connected by an intermediate chain via an ester or amide to an ionizable group (eg, a tertiary amine) (Table 26-1). In addition to the general physical properties of the molecules, specific stereochemical configurations are associated with differences in the potency of stereoisomers (eg, levobupivacaine, ropivacaine). Because ester links are more prone to hydrolysis than amide links, esters usually have a shorter duration of action. [Pg.560]

The greater stability of 120 relative to 123 induced us to center our efforts on luzopeptin E2. It seemed logical to examine first a macrolactonization strategy involving cyclodimerization of 125, because we estimated that the coupling of acid 124 with amine 49 would not be subject to the stereochemical difficulties alluded to in the introduction, and that no base treatment would be necessary subsequent to the union of 124 and 49 through peptide bond formation. Recall that peptides incorporating mhv are base-sensitive this property was likely to be carried over into 125. [Pg.23]

Obviously, this property finds interesting applications in stereochemical determinations involving oximes (Tables 7.23 - 7.25), cyclic amines (Table 7.1), tetrahydro-1,3-oxazines (Table 7.1), nitrosamines (Table 7.31) or alkyl nitrites (Table 7.32) for example (G 21) (J 2)... [Pg.194]


See other pages where Amine stereochemical properties is mentioned: [Pg.171]    [Pg.488]    [Pg.373]    [Pg.379]    [Pg.359]    [Pg.377]    [Pg.184]    [Pg.167]    [Pg.788]    [Pg.460]    [Pg.999]    [Pg.239]    [Pg.82]    [Pg.94]    [Pg.4]    [Pg.377]    [Pg.359]    [Pg.198]    [Pg.515]    [Pg.279]    [Pg.488]    [Pg.168]    [Pg.328]   
See also in sourсe #XX -- [ Pg.58 ]




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Amines properties

Stereochemical properties

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