Butyl aniline

The aniline then reacts with the ap-unsaturated aldehyde by 1 4-addition the addition product, under the influence of strong acid, cyclises to form 1 2-dihydroquinaldine. The latter is dehydrogenated by the condensation products of aniline with acetaldehyde and with crotonaldehyde simultaneously produced ( .c., ethylideneaniline and crotonylideneaniline) these anils act as hydrogen acceptors and are thereby converted into ethylaniline and n-butyl-aniline respectively. 

Because of the lower stability of Se(IV) compounds as compared with their Te(IV) analogues (95UK527), the reaction of the disilyldiimine with SeCU ends up in phenanthro[9,10-c]-l,2,5-selenadiazole. 3,4-(2,4-Di-terr-butylbenzo)-l,2,5-telluradiazole 75 was obtained by a treatment of the tellurium diimide 76 with a lithium salt of tris(rerr-butyl)aniline. Dimer 77 is an intermediate in this reaction (96IC9). 

Notes on the preparation of secondary alkylarylamines. The preparation of -propyl-, ijopropyl- and -butyl-anilines can be conveniently carried out by heating the alkyl bromide with an excess (2-5-4mols) of aniline for 6-12 hours. The tendency for the alkyl halide to yield the corresponding tertiary amine is thus repressed and the product consists almost entirely of the secondary amine and the excess of primary amine combined with the hydrogen bromide liberated in the reaction. The separation of the primary and secondary amines is easily accomplished by the addition of an excess of per cent, zinc chloride solution aniline and its homologues form sparingly soluble additive compounds of the type B ZnCl whereas the alkylanilines do not react with sine chloride in the presence of water. The excess of primary amine can be readily recovered by decomposing the zincichloride with sodium hydroxide solution followed by steam distillation or solvent extraction. The yield of secondary amine is about 70 per cent, of the theoretical. 

Chloro-4,6-di-/-butyl-1,22 , 3-benzoxaselenazole (3a) is formed by reaction of 2,4,6-tri-/-butyl-aniline with seleninyl chloride in boiling toluene. The l,2A , 3-benzoxaselenazole system is a new one. The structure of (3a) has been established (see Section 4.21.3.1) <85JCS(D)565>. 

Hydrierung von Nitrobenzol in Gegenwart der dreifachen Mol-Menge an 2-Methyl-pro-panal bzw. Butanal in Wasser bzw. Ethanol unter Verwendung eines Alizarin-Rot-S-Palladium-Komplexes als Katalysator ein Produktgemisch, das 98% N-(2-Methyl-pro-pyl)-anilin enthalt, bzw. ein Produktgemisch, das 87% N-Butyl-anilin und 10% N,N-Dibutyl-anilin neben Spuren anderer Produkte enthalt1. 

In ahnlicher Weise erhalt man z.B. die Hydrochloride von 4-Chlor-anilin (70%), 4-Meth-oxy-anilin (55%) und 2-tert.-Butyl-anilin (42%, bei umgekehrter Zugabe der Grignard-Verbindung zum Azid). 

N-(4-Methyl-phenyl)-carbamidsaure-(3-oxo-butylester) wird unter der Kataiyse durch Aluminiumoxid in wenig Chloroform oder Acetonitril zu 4-Methyl-N-(3-oxo-butyl)-anilin decarboxyliert2 ... 

C-Butyl-aniline and derivs 2 B378 dinitro-C-butylaniline 2 B378 mononitro-C-butylaniline 2 B378... 

Dinitro4-N-butyl-aminotoluene 2 B377 Dinitro-C-butyl-aniline 2 B378... 

Monaitro-C-butyl-aniline, C4Hg.C6H3(N02.NH2, mw 194.23, N 14.42%. Five isomers are described in Beil 12,1166,1169 [634,637] Dinitro-C butyl-aniiine, C-butyl-aniline, C4H9.C6H2(N02)2.NH2, mw 239.23, N 17.57%. 

Tetranitrobutylaniline, C,0H ,NgOs mw 329.23, N 21.27%. Two isomers are known [2,4,6-Trin itro-N-nitro-N-(n-butyl)] -aniline ... 

Butyl Tetryl. See [ 2,4,6-Trinitro-N-nitro-N -(n-butyl)] -aniline sym-Trinitrophenyl-N-(n -butylnitramine) or (2,4,5-Trinitrophenylnitramine) -n-butane under Tetranitro derivs of n-Butylaniline... 

Glasses have also been reported for nematic p-methoxybenzylidene-p-n-butyl-aniline 66) and some commercial liquid crystals 67) and for smectic ethyl-(p-anisol-amino)-cinnamate 68), p-n-hexyloxybenzylidene-p-aminobenzoic acid (Tg = 376 K) and p-n-nonyloxybenzylidene-p-aminobenzoic acid (Tg = 203 K) 69). 

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