Dodecanes, nitro

HNO3 leading to the formation of carboxyl acids, nitric acid ester, and nitro and nitroso compounds. Rate parameters for chemical degradation under different conditions have been investigated [106,107], The reaction of -dodecane with HNO3 is quite slow. 

Mit 3-Chlor-perbenzoesaure gelingt die direkte Oxidation von Oximen zu Nitro-Verbindungen. So reagiert endo,endo-2,6-Bis-[hydroximino]-[4]peristylan zu 2,6-Dinitro-hexacy-clol5.4.1.02 6.03-,0.05-9.08 n]dodecan( 95%)4-5 ... 

Oxime konnen auch mit Natriumdichromat zu Nitro-Verbindungen oxidiert werden. So erhalt man z.B. aus enrfo,enrfo-2,6-Bis-[hydroximino]-[4]peristylan das 2,6-Dinitro-hexa-cyclo[5.4.1.02,6.03,l°.0s,9.0s,tt]dodecan in vergleichsweise (s.S. 178) geringerer Ausbeute (50%)2 ... 

Nature of the Irradiation Source. The degradation of TBP-diluent in contact with an aqueous phase did not reveal any qualitative influence of the nature of the radiation (y, p, a, accelerator radiation). Moreover, the yield value of the decomposition products of TBP (8, 9,11, 26, 84), nitro and carbonyl products (RN02, RN03, RCOOH, and RCOR ) (16), alkanes (C5-C8), and butanol (8) were almost identical, whatever the nature of radiations. Nevertheless, after radiolysis of TBP in n-dodecane without aqueous solution, the yield of H2MBP was substantially lower under a-irradiation than under y-irradiation (Ga (H2MBP) = 0.158 and Gt(H2MBP) = 0.443) (5). 

Ballini, R. and Petrini, M. 1992. Hydroxy-functionalized conjugated nitro olefins as immediate precursors of spiroketals. A new synthesis of l,7-dioxaspiro[5.5]undecane and ( )-2-methyl-l,7-dioxaspiro[5.6]dodecane. Journal of the Chemical Society, Perkin Transactions, l(23) 3159-60. 

The reaction of lb with sodium nitrite in dimethylformamide, in the presence of urea and 1,3,5-trihydroxybenzene (phloroglucinol), gives 1 //,l//,2//,2//-unicosafluoro-l-nitro-dodecane (2b) in 51 % yield.7 The side product, 1 //,l//,2//,2//-unicosafluorododecan-l-ol (3b), resulting from hydrolysis of the corresponding nitrite ester, is isolated in 40% yield.7... 

Nowak [62] examined the influence of radiation on the system dodecane -30% TBP tributyl phosphate--nitric acid used as extractants of burned up nuclear fuel and found that nitro compounds were formed even at low concentrations of nitric acid. Nitroso and carbonyl compounds were also formed. 

O-Nitro-8 -methoxy-3 -phenyl-2, 4,7-trioxa -bicyd<>[4.4.0 ]dodecan ... 

For example, in 3 h at 180-190° there are produced from dodecane 40% of mononitro-dodecanes, together with 43% of unchanged material and small amounts of di- and poly-nitro compounds. There is more dinitration if a longer residence time or a greater excess of nitric acid is used.150... 

In 1993, Kashman et al. reported the synthesis of 7-phenylascididemin (356) (Scheme 41) (160), which was obtained during their synthetic studies toward the total synthesis of eilatin (413) (160). A double Skraup reaction between 4-nitro-o-phenylenediamine (353) and two moles of 3 -chloropro-piophenone (354) gave the diphenylphenanthroline 355, which, upon heating in dodecane under N2 in the presence of (EtO)3P, unexpectedly yielded... 

Figure 3.24 Chromatograms of the separation of nitro-containing compounds on 10 m x 0.53 mm i.d. column with (a) CP Sil 19 CB and (b) CP Sil 8 CB as stationary phase column conditions 50°C (3 min) at 6°C/min to 250°C, detector FID, 24 cm/s He. Solutes (1) nitropropane, (2) 2-nitro-2-methyl-l-propanol, (3) n-dodecane, (4) nitrobenzene, (5) o-nitrotoluene, (6) 2-nitro-2-methyl-1,3-propanediol, (7) 2-nitro-2-ethyl-1,3-propanediol, (8) /7-nitroaniline, (9) /7-nitrobenzyl alcohol, (10) o-nitrodiphenyl, and (11) 4-nitrophthalimide. The stationary phases, CP Sil 19 CB and Cp Sil 8 CB are chemically similar to OV-1701 and OV-5, respectively. (From ref. 146.)...

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