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Aziridination reactions with hypervalent bromine

Aziridination reactions with hypervalent iodine

Aziridinations of linear and cyclic a,p-unsaturated ketones.

Aziridines and imines by elimination of nitrogen from triazolines

Aziridines as intermediates in the synthesis of a,a-disubstituted amino acids p-Tol

Aziridines as precursors to polyfunctionalized amines.

Aziridines from a silylketene acetaP

Azirines as ring enlargement units. The stared nitrogen atoms were caused from 15N by labelling experiments ,

Azirines as the suppliers of the C fragments for the construction of quinoxalines

Azirines from 3-azido-2,3-dideoxyhexanopyranoses

Azirines from vinyl azides

Azlactone oxazoline-interconversion.

Azlactones - cyclic and N-analogous amino acid anhydrides

Azlactonization of intermediate 5 .

Azo and anthraquinone dyes suitable for liquid crystalline media.

Azo compound synthesis and the molecular structure of the hydroxy-azo tautomer showing the positions of the coupler components. The keto-hydrazone tautomer is shown in equilibrium with the hydroxy-azo tautomer.

Azo compounds are also metabolized via addition of unpaired electrons. Addition of the first electron breaks the jt bond between the two nitrogens to form a radical anion. A second electron and two protons are then added to produce a hydrazine. With the addition of another electron the N-N bond breaks. Again, one more electron and two protons are added to give the final products, which are two amines .

Azo compounds form salts with a polyamino dendrimer. Elaborated with permission from

Azo compounds that form liquid crystals

Azo condensation pigments

Azo coupling of 5-methylresorcinol and 4-nitrobenzenediazonium tetrafluoroborate.

Azo coupling of N,N-dimethylaniline and 4-nitrobenzenediazonium tetrafluoroborate.

Azo coupling reaction between benzenediazonium chloride and phenol.

Azo cromophore within the spirolactone molecule.

Azo disperse dyes for polyester



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