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Nitrogen, active

Reactions with strongly basic nucleophiles such as potassium amide in liquid ammonia may prove much more complex than direct substitution. 2-Chloro-4,6,7-triphenylpteridine reacts under these conditions via an S ANRORC mechanism to form 2-amino-4,6,7-triphenylpteridine and the dechlorinated analogue (78TL2021). The attack of the nucleophile exclusively at C-4 is thereby in good accord with the general observation that the presence of a chloro substituent on a carbon position adjacent to a ring nitrogen activates the position meta to the chlorine atom for amide attack. [Pg.293]

Other methods have been developed for the removal of oxygen (particularly from flowing streams). These include the use of electrochemical or chemical (zinc) scrubbers, nitrogen-activated nebulizers, and chemical reduction (by addition of sodium sulfite or ascorbic acid). Alternately, it may be useful to employ voltam-... [Pg.103]

However, the nitrogen molecule has afar greater bonding energy than ammonia and is more difficult to dissociate into free atomic nitrogen active species. Consequently, the deposition rate is extremely slow. This can be offset by plasma activation with high frequency (13.56 MHz) or electron cyclotron resonance (ECR) plasmasP Ef l and with micro-wave activation. [Pg.282]

Ogan, M.T. (1990) The nodulation and nitrogen activity of natural stands of mangrove legumes in a nitrogen swamp. Plant Soil Sci. 123, 125-129. [Pg.639]


See other pages where Nitrogen, active is mentioned: [Pg.88]    [Pg.170]    [Pg.414]    [Pg.34]    [Pg.387]    [Pg.543]    [Pg.26]    [Pg.180]    [Pg.180]    [Pg.197]    [Pg.145]    [Pg.528]    [Pg.599]    [Pg.170]    [Pg.293]    [Pg.215]    [Pg.88]    [Pg.599]    [Pg.297]    [Pg.3025]    [Pg.7]    [Pg.121]    [Pg.110]    [Pg.197]    [Pg.331]    [Pg.126]   
See also in sourсe #XX -- [ Pg.320 ]

See also in sourсe #XX -- [ Pg.2 ]




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A nitrogen lone pair activates even more strongly

Activated Carbon Nitrogen Content

Activated carbon nitrogen-containing

Activated nitrogen content

Activated replacement by nitrogen

Active nitrogen detector

Active nitrogen with hydrocarbons

Active nitrogen with other atoms

Ammonia catalyst nitrogen activation

Azines—continued activation by additional ring-nitrogen

Azines—continued activation by ring-nitrogen vs. nitro

Azines—continued inductive activation by ring-nitrogen

Azines—continued resonance activation by ring-nitrogens

Biological activity and nitrogen fixation

Carbon-nitrogen bond formation activation

Catalytically active sites nitrogen yield

Ethylene with active nitrogen

Excitation of additives in active nitrogen

Microwave activated nitrogen

Nitration with nitrogen dioxide in the presence of activated silica

Nitrogen activated

Nitrogen activation

Nitrogen activation

Nitrogen active forms

Nitrogen compounds, optically active

Nitrogen cycle enzyme activity

Nitrogen cycle human activities, effect

Nitrogen enzyme activities

Nitrogen fixation hydrogenase activity

Nitrogen pentoxide decomposition activation energy

Nitrogen, active reaction

Nitrogen, active, reaction with hydrocarbons

Nitrogen, reaction with oxygen active

Nitrogen-Activating Group Effects

Nucleophilic substitution activation by nitrogenous substituents

Nucleophilic substitution of azines, activation by azine-nitrogen

Phosphorous compounds with active nitrogen

Physiologically active nitrogen compounds

Plasma activated nitrogen

Reaction with active nitrogen

Soils active nitrogen chemistry

Uranium nitrogen activation

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