4-Amino-4 -nitrobiphenyl

Nicotinic anhydride, 47, 89 Nitration, of o-aminobiphenyl to o-amino-/> -nitrobiphenyl, 46, 86 of o-tolunitrile with nitronium tetra-fluorohorate, 47, 56... 

As chiral molecules, CD hosts are one of the best chiral selectors [23]. They can also induce circular dichroism signal in an achiral guest. As shown by Zhang and Nau [24] for the complexes of p-CDwith bicyclic azaalkanes 290 or 291, this effect may allow one to determine the orientation of the latter molecule in the CD cavity. An interesting example of the influence of 11 on the guest conformation was reported by Brett and coworkers [25]. They have shown that p-amino-/ -nitrobiphenyl 292, which is planar in the solid state, becomes nonplanar in the solid state complex with 3-CD. 

Amino-2-methyl-l-propanol in isolation of levopimaric acid, 46, 64 e-Amino- -nitrobiphenyl, by nitration of o-aminobiphenyl, 46,86 from o,/> -dinitrobiphenyl, 46, 88 AmiNO-2-PIIOPANONE, SEiaCABSAZONE HYDROCSIAtiaOE, 46,1 Ammonia, reaction with 3,4-dichloto-... 

Silver fluoborate, reaction with ethyl bromide in ether, 46, 114 Silver nitrate, complexing with phenyl-acetylene, 46, 40 Silver oxide, 46, 83 Silver thiocyanate, 46, 71 Sodium azide, reaction with f-butyl chloroacetate, 46, 47 reaction with diazonium salt from fi-amino-/> -nitrobiphenyl, 46,... 

Anisotropic atom-atom potentials based on X-ray molecular charge densities were applied in the evaluation of intermolecular interactions and lattice energies of crystals of glycylgjycine, dl-histidine and DL-prohne, /i-nitroaniline and p-amino- -nitrobiphenyl. The intermolecular HBs in the crystals were identified by topological analysis of the experimental charge densities. 

Amino 2 deoxy d glucose, conversion of hydrochloride to 2 acetamido-2 deoxy d glucose, 46, 2 l-(Ammomcthyl) cycloheptanol, 46, 31 2 Amino 2 methyl 1 propanol in isolation of levopimanc acid 45, 64 c-Amino p nitrobiphenyl, by nitration of o aminobiphenyl, 46, 86 from o,p dimtrobiphenyl, 46, 88 Amino 2 propanone, semicarbazone... 

The triplet state of 4-nitrobiphenyl has been observed in laser flashed benzene solution (. max 540 nm, t 10 ns at room temperature) 32). 4-Nitrobiphenyl and 4,4 -dinitrobiphenyl have been photoreduced by sodium formate in buffered aqueous methanolic solution 43i>) 15% 4-aminobiphenyl and 11% 4,4 -azobi-phenyl as well as 49% 4-amino-4 -nitrobiphenyl and 20% 4,4 -(p-nitrophenyl)-azoxybenzene, respectively, could be isolated and identified by comparison with authentic samples. 

Soil Benzidine was added to different soils and incubated in the dark at 23 °C under a carbon dioxide-free atmosphere. After 1 yr, 8.3 to 11.6% of the added benzidine degraded to carbon dioxide primarily by microbial metabolism and partially by hydrolysis (Graveel et al, 1986). Tentatively identified biooxidation compounds using GC/MS include hydroxybenzidine, 3-hydroxybenzidine, 4-amino-4 -nitrobiphenyl, A(A -dihydroxybenzidine, 3,3 -dihydroxybenzidine and 4,4 -dinitrobiphenyl (Baird et al, 1977). Under aerobic conditions, the half-life was estimated to be 2 to 8 d (Lu et ah, 1977). 

In the presence of hydrogen peroxide and acetylcholine at pH 11 and 20 °C, benzidine oxidized to 4-amino-4 -nitrobiphenyl (Aksnes and Sandberg, 1957). 

Amino-3-methylphenol, see 4-Nitrophenol Aminomethylphosphonic acid, see Glvnhosate 2 -Amino-2-naphthoxypropiophenone, see Napropamide 4-Amino-2-naphthoxypropiophenone, see Napropamide Aminonitrobenzoic acid, 3.4-Dinitrobenzoic acid 4-Amino-4 -nitrobiphenyl, see Benzidine 2-Amino-6-nitro-lV-(l-ethylpropyl)-3,4-xylidine, see... 

B. o-Amino-p -nitrobiphenyl. Concentrated sulfuric acid (400 ml.) is placed in a 11. round-bottomed flask fitted with a mechanical stirrer and a thermometer. Stirring is begun, and 45.0 g. (0.27 mole) of powdered o-aminobiphenyl is added all at once through a powder funnel. When the amine has dissolved, the flask is placed in an ice-salt bath and its contents cooled to a temperature between 0° and —5°. A mixture of 30 ml. of concentrated sulfuric acid and 11.0 ml. of fuming nitric acid (density... 

Amino biphenyl, leaflets(from ale), mp 53-55°, bp 302° diff sol in cold w sol in ale, eth, chlf hot w. Was first prepd by Hofmann (Ref 2) from the high boiling residue obtained in the manuf of aniline and named "Xenyla-min . It can also be prepd by the reduction of 4-nitrobiphenyl or by other methods(Ref 1) When a salt of 4-aminobiphenyl, such as the hydrochloride, is treated with NaN02+acid, diazotization takes place. If diazotization of aminobiphenyl is followed by treatment with perchloric acid the resulting compd is an explosive, biphenyldiazonium perchlorate. 

Sodium azide, reaction with f-butyl chloroacetate, 45, 47 reaction with diazonium salt from o-amino-p -nitrobiphenyl, 46, 86 Sodium chlorodifluoroacetate, 47, SO reaction with triphenylphosphine and benzaldehyde, 47, SO Sodium ethoxide, 45, 25 reaction with diethyl succinate, 46,25 Sodium formate as reducing agent in preparation of palladium catalyst, 46,90... 

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