Tert-Butylamine, N-

N-methylen-tert-butylamin-N-oxid 7991a> and 5,5-dime thyl-A1 -pyrrolin-N-oxid T892 have been employed as spin traps, but a variety of other nitrones is also suitable93. While ESR data from adducts to 81 c give relatively little information on fine structure of the radicals88, in the spectra of adducts from 79 and 78 more such information is recognizable926 d 94 ... 

By ESR spectroscopy Janzen measured the rate of formation of aminyloxides from benzoyloxy radicals and N-aryliden-tert-butylamin-N-oxides 81 and so determined the rate of thermal decomposition of benzoylperoxide90cl The value estimated in this manner is in accordance with those determined by other methods. In the same way the rate constants for spin trapping of tert-butoxy radicals by different spin traps were determined901. The relative values listed in the following table show how effectively the spin traps operate. 

A 50 50 mixture of benzyliden-tert-butylamin-N-oxide (81 c) and 2,4,6-tri-tert butylphenol operates in the same way97. ... 

The acyclic imidoselenium(II) dihalides ClSe[N( Bu)Se]nCl (8.23, n =1 8.24, n = 2) are obtained from the reaction SeCla with tert-butylamine in a 2 3 molar ratio in THF. There are no sulfur or tellurium analogues of this class of chalcogen-nitrogen halide. 

Two pieces of chemical evidence support the three-membered ring formulation. The bifunctional oxazirane prepared from glyoxal, tert-butylamine, and peracetic acid (6) can be obtained in two crystalline isomeric forms. According to the three-membered ring formula there should be two asymmetric carbon atoms which should allow the existence of meso and racemic forms. A partial optical resolution was carried out with 2-7i-propyl-3-methyl-3-isobutyloxazirane. Brucine was oxidized to the N-oxide with excess of the oxazirane. It was found that the unused oxazirane was optically active. 

Benzpyrinium bromide Phentermine HCI N -Benzyl-N-tert-butylamine Carbuterol Terbutaline... 

Lithiumboranat10 N atriumboranat11 Kaliumboranat12 tert.-Butylamin-Boran13 Dimethylamin-Boran13 1,2-Diamino-athan-Boran 4 Pyridin-Boran15... 

Dirheniumheptoxide 2154 is converted by TCS 14, in the presence of 2,2 -dipyri-dine, into the dipyridine complex 2160 [77]. Free ReCls, NbCls, and WCI5 react with HMDSO 7 and 2,2 -bipyridine to form bipyridine oxochloride complexes 2161 and TCS 14, with reversal of the hitherto described reactions of metal oxides with TCS 14. The analogous Mo complex 2162 undergoes silylahon-amination by N-trimethylsilyl-tert-butylamine 2163 to give the bis-imine complex 2164 and HMDSO 7 [77] (Scheme 13.22). 

Figure III.6 Product sheet of the nickel quencher 2,2 -thio-bis-(4-tert-octylphenolato)-n-butylamine nickel(ll). After Gijs-man [1]. Reproduced by permission of P. Gijsman...

Angelici and Brink (40) have found that in the reactions of amine with trans-M(CO),(PPhMe2)2+ (M = Mn or Re), the rate of carbamoyl formation follows the order, n-butylamine > cyclohexyl-amine >, isopropylamine > sec-butylamine >> tert-butylamine, implying a strong steric effect in carbamoyl formation. A similar order has been observed in the rate of reaction of organic esters with amines to form amides (41). The data in Table III indicate that a steric effect may be operative in the Ru (CO) /NR3-catalyzed WGSR, since with tertiary amines the rate follows the order, NMeQ > MeNC.H > NEt > NBu0, which does not reflect the basicity of these amines. 

The proton transfer from multiply charged [cytochrome c] " (n = 7-9) to (/ )- and (5)-2-butylamine show a significant enantioselectivity." " Ions [cytochrome n = l-9) were produced by ESI and introduced into the analyzer cell of a FT-ICR containing an alkylamine, i.e., (/ )- and (5)-2-butyIamine, 1-propylamine, or tert-butylamine. Rate constants for the proton transfer are listed in Table 18. 

Aus N-(2-Brom-2-methyl-propyliden)-morpholinium- bzw. -piperidinium-bromid erhalt man mit tert.-Butylamin dagegen unter Umlagerung tert.-Butyl- (2-methyl-2-morpholino-propyliden)- bzw. -(2-methyl-2-piperidino-propyliden)-amin (45 bzw. 40%). ... 

Bei der Umsetzung von 2,2-Dimethyl-propansaure mit Schwefelsaure und Kaliumcyanid in der Kalte, anschliefiendes GieBen auf Eis und mehrstiindiges Kochen erhalt man 2-Amino-2-methyl-propan (tert.-Butylamin 68%)1. Die Reaktion verlauft iiber N-tert.-Bu-tyl-formamid als Zwischenstufe. 

Sec-Butyl Acetate N-Butyl Acrylate Iso-Butyl Acrylate N-Butyl Acrylate N-butyl Alcohol N-Butyl Alcohol Sec-Butyl Alcohol Tert-butyl Alcohol N -Butyraldehyde N-butyl Methacrylate N-Butylamine N-Butylamine Sec-Butylamine Tert-Butylamine Benzyl N-butyl Phthalate N-Amyl Alcohol N-Amyl Chloride... 

A solution of 0.634 g (2.0 mmol) of 2-(benzyloxycarbonyl)-decahydro-(4aS,8aS)-isoquinoline-3(S)-carboxylic acid in 6 ml of dimethoxyethane was treated with 0.23 g (2.0 mmol) of N-hydroxysuccinimide and 0.412 g (2.0 mmol) of dicyclohexylcarbodiimide. The mixture was stirred at room temperature for 18 hours. The mixture was filtered and the filtrate was evaporated to give 0.879 g of the N-hydroxysuccinimide ester of the foregoing acid in the form of a pale yellow oil. A solution of 0.828 g (2.0 mmol) of the foregoing N-hydroxysuccinimide ester in 5 ml of dichloromethane was stirred, cooled to 0°C and treated with 0.219 g (3.0 mmol) of tert.butylamine. The mixture was stirred at 0°C for 2 h and then at room temperature for 4.5 h. The mixture was then washed with 2 M hydrochloric acid, sodium carbonate solution and sodium chloride solution, dried over anhydrous magnesium sulphate and evaporated. The residue was dissolved in 20 ml of diethyl ether and filtered. The filtrate was evaporated to give 0.712 g of 2-(benzyloxycarbonyl)-N-tert-butyl-decahydro-(4aS,8aS)-isoquinoline-3(S)-carboxamide in the form of a white solid. 

The sensitivity of the analysis for different amines obtained by Walle for DNP derivatives using the ECD is demonstrated in Table 5.8. It varies in the range 2—20 pg. The reaction yields studied for diethyl-, tert. -butyl-, n-amyl- and di-n-butylamines are almost quantitative the recovery of the extraction from an aqueous solution of diethyl-, isopropyl- and w-amylamines is also reported as being practically 100%. If this is the case with other amines also, the problem of quantitative analysis is thus made considerably easier. The extraction of amines with benzene prior to the derivatization makes possible their isolation from other substances that could react with the reagent (e.g., phenols, see p. 88) and make the analysis complicated. 

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