Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

N- -ethylamine

In the case of tertiary N-ethylamine derivatives the N-ethyl group is first selectively oxidized by p-chloranil to an enamino group which then condenses with excess p-chloranil to a blue aminovinylquinone derivative [7]. Secondary N-ethyl derivatives do not yield blue aminovinylquinone derivatives they probably react directly with chloranil by nucleophihc attack at one of the four chlorine atoms to yield aminoquinones of other colors [7], It has also been suggested that some classes of substances react to yield charge transfer complexes [1, 5, 8, 12],... [Pg.103]

Ethoxylcarbonyl-2-arylazo-2-nitroe thane derivatives lb 365 Ethoxyquine la 106,108 Ethylamine lb 104,268 N-Ethylamine derivatives, tertiary lb 290 Ethylamphetamines la 45 N-Ethyl-N -benzylthiourea lb 301 N-Ethyl derivatives lb 190 -, secondary lb 190 -, tertiary lb 188, 191 Ethelenediamine la 392 Ethylene glycol dinitrate lb 415 N4-Ethyl-N4-(2-methanesulfonamido-ethyl)-2-methyl-l,4-phenylenediamine, reagent la 368... [Pg.485]

Similar reactions were observed with other tertiary N-ethylamines though in lower yields. Despite rather low yields in most instances, the products were prepared in one pot and from cheap starting materials. The thiophene ring of 229 was built from two ethyl groups with a new C-C bond established between two formally unactivated methyl groups the pentathiepin ring was fused onto... [Pg.219]

Figure 1. Yield of pentasil zeolites (percentage crystallization) as a function of time. Abbreviations are C, for mono-n-butylair ne, CU for mono-n-propylamine, C2 for mono-n-ethylamine, C. for mono-n-methylamine, di-C, for di-n-propylamine, di-C, for di-n-propylamine,+di-C2 for di-n-ethylamine, di-n-C.. for di-n-methylamine, TPA Al-free for the aluminium-free synthesis with the tetrapr pylammonium cation, TPA for tetrapropylammonium cation, TEA Al-free for the+aluminium-free synthesis with the tetraethylammonium cation, TEA for tetraethylammonium cation and tri-C for tri-n-propylamine. Figure 1. Yield of pentasil zeolites (percentage crystallization) as a function of time. Abbreviations are C, for mono-n-butylair ne, CU for mono-n-propylamine, C2 for mono-n-ethylamine, C. for mono-n-methylamine, di-C, for di-n-propylamine, di-C, for di-n-propylamine,+di-C2 for di-n-ethylamine, di-n-C.. for di-n-methylamine, TPA Al-free for the aluminium-free synthesis with the tetrapr pylammonium cation, TPA for tetrapropylammonium cation, TEA Al-free for the+aluminium-free synthesis with the tetraethylammonium cation, TEA for tetraethylammonium cation and tri-C for tri-n-propylamine.
Chromatographic separation of N-nitroso-N-ethylamine and of some nitramines horn propellants) e)S.I. Burmistrov, ZhAnalKhim 5,119—22... [Pg.177]

Methyl-4,6-0-benzyl- idene-S-deoxy-3- nitro 3-glucopyran- oside-2-N-ethylamine [37b] 104-5 61-43 89-13 77-94 66-35... [Pg.292]

N-Alkyl-N-arylcarbamoyl chlorides have been synthesized in >90% yield by the carbamoylation of secondary N-alkyl-N-arylamines with triphosgene for 2-3 h at 0-23 °C in a solvent (benzene, toluene, xylene, or chloroform), and in the presence of an organic base (triethylamine, N,N-diisopropyl-N-ethylamine, or pyridine) [123]. [Pg.83]

Scheme 9.119. The formation of N-ethylethanonamide (N-ethylacetamide) by reaction of acetic acid with N-ethylamine in the presence of cyclohexylcarbodiimide (top) and carbon-yldiimidazole (bottom). In the first case, dicyclohexylurea is formed along with the amide in the second case, the amide is accompanied by carbon dioxide and two equivalents of imidazole. Scheme 9.119. The formation of N-ethylethanonamide (N-ethylacetamide) by reaction of acetic acid with N-ethylamine in the presence of cyclohexylcarbodiimide (top) and carbon-yldiimidazole (bottom). In the first case, dicyclohexylurea is formed along with the amide in the second case, the amide is accompanied by carbon dioxide and two equivalents of imidazole.

See other pages where N- -ethylamine is mentioned: [Pg.320]    [Pg.400]    [Pg.76]    [Pg.280]    [Pg.280]    [Pg.196]    [Pg.999]    [Pg.177]    [Pg.287]    [Pg.287]    [Pg.138]    [Pg.199]    [Pg.87]    [Pg.985]    [Pg.1074]    [Pg.1237]    [Pg.1646]    [Pg.1682]    [Pg.2378]    [Pg.2407]    [Pg.371]    [Pg.971]    [Pg.1059]    [Pg.1198]    [Pg.1592]    [Pg.1628]    [Pg.2536]    [Pg.2563]    [Pg.45]    [Pg.150]    [Pg.358]    [Pg.400]    [Pg.244]    [Pg.2]    [Pg.108]    [Pg.329]    [Pg.332]    [Pg.332]   
See also in sourсe #XX -- [ Pg.7 , Pg.44 ]

See also in sourсe #XX -- [ Pg.437 ]




SEARCH



Ethylamine, N-aryltrichlorocyclization

Ethylamine, N-methyl

Ethylamines

N-(2-Bromoallyl)ethylamine

N-Methyl-3,4-dihydroxyphenylalanine 3- ethylamine

© 2024 chempedia.info