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Azidocarbonylation

In contrast to diamino/urazan, diamino/uraxan is probably unstable. All attempts to generate it from rearrangements shown in Scheme 107 failed. However, Curtius rearrangement of 3,3 -bis(azidocarbonyl)-4,4 -azofuroxan 182 with subsequent isomerization afforded 4,4 -diamino-3,3 -azofuroxan 183 in 69% yield (Scheme 108) (98DOK499, 98MI2, 98MI6). [Pg.119]

Oxazoles (191) are producedwhen triphenylphosphine is treated simultaneously with an a-azidocarbonyl compound and an acyl halide. The intermediate iminophosphoranes (189) react with the acyl halide before they can react with themselves to give pyrazines. Elimination of phosphine oxide from the resulting salts may give the intermediate halo-genoimines (190), or the oxazoles may be formed via the betaines (192). [Pg.185]

Azidoacetyl chloride See other 2-azidocarbonyl compounds, organic acids... [Pg.293]

Acetyl azide, 0771 A-Azidocarbonylazepinc, 2728 Azidocarbonyl fluoride, 0339 Azidocarbonylguanidine, 0820 4-Azidocarbonyl-1,2,3-thiadiazole, 1069 Azidodithioformic acid, 0386 Benzene-l,3-bis(sulfonyl azide), 2210 Benzenesulfinyl azide, 2273 Benzenesulfonyl azide, 2274 Benzoyl azide, 2698... [Pg.25]

Bis(azidocarbonyl)cyclopropane, 1835 Bis(azidothiocarbonyl) disulfide, 1016 4-Bromobenzoyl azide, 2644... [Pg.25]

See also 2-azidocarbonyl compounds, cubanes, sulfinyl azides... [Pg.26]

Acetyl bromide, 0728 f Acetyl chloride, 0735 f Aciyloyl chloride, 1093 Azidocarbonyl fluoride, 0339 Benzenesulfinyl chloride, 2234 Benzenesulfonyl chloride, 2235 Benzoyl chloride, 2675 Benzyl chloroformate, 2931... [Pg.26]

ACYL AZIDES, 2-AZIDOCARBONYL COMPOUNDS, ORGANIC AZIDES... [Pg.70]

Certain 2-azidocarbonyl compounds and congeners have long been known as unstable substances [1]. Some members of a group of 2,5-dialkyl-3,6-diazido-1,4-benzoquinones decompose violently on melting [2], Individually indexed compounds are ... [Pg.70]

Barium Halocarbons, 0200 Barium peroxide, 0216 l,2-Bis(azidocarbonyl)cyclopropane, 1835 Calcium hypochlorite, 3924 Chromium trioxide Potassium hexacyanoferrate(3—), 4242 Diazidodimethylsilane, 0918... [Pg.161]

A. N. Binnikov, A. S. Kulikov, N. N. Makhov, 1. V. Orchinnikov and T. S. Pivina, 4-Amino-3-azidocarbonyl Furoxan as an Universal Synthon for the Synthesis of Energetic Compounds of the Furoxan Series , 30th International Annual Conference of ICT, Karlsruhe, Germany, 1999, 58/1-58/10. [Pg.328]

See other pages where Azidocarbonylation is mentioned: [Pg.228]    [Pg.306]    [Pg.306]    [Pg.140]    [Pg.293]    [Pg.391]    [Pg.427]    [Pg.434]    [Pg.601]    [Pg.620]    [Pg.624]    [Pg.660]    [Pg.767]    [Pg.857]    [Pg.1117]    [Pg.346]    [Pg.25]    [Pg.70]    [Pg.70]    [Pg.295]    [Pg.303]    [Pg.6]    [Pg.51]    [Pg.51]    [Pg.276]    [Pg.252]   


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3-Azidocarbonyl

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