Benzaldehyde trinitro

Some substrates like benzoic acid, benzaldehyde etc. are so deactivated that direct nitration to their trinitro derivatives is not possible. Direct nitration of benzoic acid with excess fuming nitric and concentrated sulfuric acids at a temperature of 145 °C for several hours results in the formation of 3,5-dinitrobenzoic acid (54-58 %). The use of oleum in such reactions can significantly reduce the rate of nitration due to carbonyl protonation (see Section 4.3.3). Consequently, indirect routes are used for the synthesis of polynitroarylenes like 2,4,6-trinitrobenzoic acid and 2,4,6-trinitrobenzaldehyde (Section 4.9). 

Silane, (3, 5-dimethyl-2, 4, 6-trinitrophenyl) trimethyl-Benzene, 1, 3-Bis (1, l-dimethylethyl)-2-methoxy-5-nitro Benzene, 1-(1, l-dimethylethyl)-2-methoxy-3-nitro Benzene, 2-methoxy-4-methyl-l, 3,5-trinitro Benzaldehyde, 3-(l,l-dimethylethyl)-2-methoxy-5-nitro Benzene, 2-bromo-4- (l,l-dimethylethyl)-l,3, 5-trinitro Benzene, l-(l,l-dimethylethyl)-2, 4-dimethoxy-5, 6-dimethyl-... 

Dinitro-3-hydroxybenzaldehyde gives dark crimson needles of 2,4,6-Trinitro-hydroxy-benzaldehyde- [4-nitro-phenylhydrazone], 02NC6H4NN CC6H(N02)3 0H which explode at 228-30°. Its p-Bromophenylhydrazone, deep olive green crystals with a metallic luster, also explodes violently at 218-20°. The p-nitro-phenylhydrazone derived from 2,6-dinitrohydroxy-benzaldehyde, deep terra cotta crystals, explodes at 240-42°, but the corresponding p-bromophenyl-... 

Azin of 2,4,6-trinitro-3-hydroxy-benzaldehyde, also called 2,4,6,2, 4, 6 -Hexanitro-3,3 -dihy-droxybenzadazin (also called Azin des 2,4,6-Trinitrobenzaldehyds in Ger). [H0C6H(N02)3CH N-] 2 mw 510.28, N 21.96%, OB -53.0% in the form of bright yellow needles that are sol in ale or 50% HAc, but insol in benz. Prepd by treating1 2,4,6-Trinitro-3-hydroxybenzaldehyde in hot aq NaOH with hydrazine sulfate Refs 1) Beil 8, [63] 2) H.H. Hodgson ... 

N,N -D ime thy 1-4,6-dinitro-m-pbenylenedia-mine, (02N)2CeH2(NH.CH3)2 yel ndls (from acet), mp >290° (dec) obtd with other products by warming 5-chloro-l,2,4-trinitro-benzene or 5 bromo- deriv with ca 4 moles of benzaldehyde-methylimide in MeOH (Refs 4 7)... 

N-( 2,4,6-Trinit rob enzy lid ene)-3-nitroaniline, (02N)3CgH2.CH N.C6H4.N02 yel crysts, mp 161-2° was prepd by interaction of 2,4,6-trinitro-benzaldehyde with m-nitroaniline in cold AcOH. 

Dinitro-3-hydroxybenzaldehyde gives dark crimson needles of 2,4,6-Trinitro-hydroxy-benzaldehyde- [4-nitro-phenylhydrazone],... 

The condensation reactions of di- and trinitro mesitylene and m-xylene also indicate that nitro groups lose their characteristic activating influence when they are flanked by two methyl groups. In the presence of piperidine, 4,6-dinitro-ra-xylene (XLVII) and 2,4,6-trinitro-m-xylene (XLVIII) will condense with benzaldehyde 22 (equations 4 and 5). When... 

Phenyl-2,2,2-trinitro-ethan reagiert bei 60° mit einer Suspension von Casiumfluorid in Dimethylformamid un-tcr Stickstoff-Entwicklung zu Benzaldehyd und Benzoesaure94 ... 

Ahnlich wird aus 2,4,6-Trinitro-benzaldehyd-(4-ethoxy-phenylimin) 4,6)-Dinitro-2-(4-ethoxy-phenyl)-3-hydroxy-2H-indazol-l-oxid118 [Schmp. 209° (Ethanol)] erhalten. 

Relatedly, Norris35 reported that the heat of complexation of sulphite anion with the 2,4,6-trinitro derivatives of toluene and benzaldehyde (R = Me and CHO in 47) had equilibrium constants of 5.6 x 10° and 2.15 x 103 Lmol-1, respectively. However, in that neither the enthalpy nor entropy of reaction was presented separately for either of these two cases, there is insufficient information to evaluate such issues as whether the latter corresponds to complex 48 with R = CHO, to its non- ipso Meisenheimer isomer (49a) or to the normal ... 

JV-Methylmescaline was isolated by Spath and Bruck (125) from the mother liquors from the crystallization of the nonphenolic bases of mescal-buttons. The identity of this base was established by comparison with synthetic iV -methylmescaline which was obtained by the condensation of mescaline with benzaldehyde, followed by methylation of the benzal derivative with methyliodide, and hydrolysis of the quaternary base picrate, m.p. 177.6-178 trinitro-m-cresolate, m.p. 189.5-190.5 p-nitrobenzoyl derivative, m.p. 142-143 . 

Dmitroso-2.6-dinitro-tolnaI 7. 6M. C7H,N,0, 2.4.6-Trinitro-benzaldehyd-oxim... 

---