57049-35-1

Basic information

• Product Name: 4,4'-diaminotrityl alcohol
• Synonyms: 4,4'-diaminotrityl alcohol;4-Amino-α-(4-aminophenyl)-α-phenylbenzenemethanol;Einecs 260-531-0
• CAS NO: 57049-35-1
• Molecular Formula: C₁₉H₁₈N₂O
• Molecular Weight: 290.35902
• EINECS: 260-531-0
• Mol File: 57049-35-1.mol

Chemical Properties

• Boiling Point: 536.7°Cat760mmHg
• Flash Point: 278.4°C
• Appearance: /
• Density: 1.236g/cm³
• CAS DataBase Reference: 4,4'-diaminotrityl alcohol(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-diaminotrityl alcohol(57049-35-1)
• EPA Substance Registry System: 4,4'-diaminotrityl alcohol(57049-35-1)

Safety Data

• Hazardous Substances Data: 57049-35-1(Hazardous Substances Data)

Upstream product

• 13145-01-2 bis-(4-acetylamino-phenyl)-phenyl-methane 
• 7732-18-5 water 
• 70994-28-4 4,4'-diamino-tritylium; chloride 
• 463-79-6 carbonic-acid 
• 57855-51-3 4-(4-amino-benzhydrylidene)-cyclohexa-2,5-dienone-imine 
• 93-89-0 benzoic acid ethyl ester 
• 5089-33-8 2-(4-bromophenyl)-1,1,1,3,3,3-hexamethyldisilazane 
• 71-43-2 benzene 
• 93918-39-9 Bis-(4-acetylamino-phenyl)-phenyl-methanol 
• 60-29-7 diethyl ether 
• 10026-13-8 phosphorus pentachloride 
• 7664-93-9 sulfuric acid 
• 1137-41-3 (4-aminophenyl)(phenyl)methanone 
• 62-53-3 aniline 

Downstream Products

• 128527-06-0 4,4'-Bis<4-(dimethylamino)phenylazo>triphenylmethanol 
• 128527-14-0 4,4'-Bis(4-hydroxyphenylazo)triphenylmethanol 
• 603-40-7 4,4'-benzylidenedianiline 
• 128527-07-1 4,4'-Bis(4-methoxyphenylazo)triphenylmethanol 

Relevant articles and documents

Phenylazo-Substituted Triphenylmethylium Systems

Triphenylmethanols (or their ethers) bearing phenylazo groups react with trifluoroacetic acid to give deeply colored solutions of the tritylium ions 7(+) - 9(+), (RC6H4N=NC6H4)nC(+)(C6H5)3-n (R = H, Me, Cl, NO2, MeO, H2N, Me2N), whose long wavelengths VIS absorptions and lowfield 1H-NMR signals are consistent with the existence of through-conjugated ?-electron systems.After addition of trifluoromethanesulfonic acid significant hypsochromic shifts of the VIS bands as well as additional proton deshieldings in the 1H-NMR spectrum are observed, which are in accordance with the formation of proximally azo-protonated phenylazotritylium ions 7(+)*H(+), 8(+)*2H(+), and 9(+)*3H(+), (RC6H4N=N(+)H-C6H4)nC(+)(C6H5)3-n.Fully analogous acid-strength-dependent ionisation/protonation reactions result for the overall p-substituted ions 17(+), 18(+), (RC6H4N=NC6H4)C(+)(C6H4R')2 (R,R' = Me, MeO, Me2N), as well as for the azobistritylium system 10(2+), (C6H5)2C(+)C6H4N=NC6H4C(+)(C6H5)2, and its azoxy derivative 11(2+).The linearly extended bis- and trisazo systems 19(+), 22(+), MeC6H4N=N(C6H4N=N)1,2C6H4C(+)(C6H5)2 and the (phenylazo)styryl system 20(+), MeC6H4N=NC6H4CH=CHC6H4C(+)(C6H5)2 in trifluoroacetic acid do not show any significant color changes relativ to the corresponding monofunctional parent types.In trifluoromethanesulfonic acid, however, compounds 19(+), 22(+) exhibit the usual bathochromic shifts of the longest wavelenght VIS absorption accompanying the increasing protonation of the polyazo system.In the case of the tritylium ions containing azomethine bridges, 24(+), only for the methoxy derivative 24b(+) indications for the existence of the conjugatively extended tritylium system (MeOC6H4N=CHC6H4)C(+)(C6H5)2 are found.The amide derivatives 26(+)-29(+), on the other hand, presents no clues for the existence of through-conjugated systems of the kind ArC(OH)=NC6H4C(+)Ar2 and ArN=C(OH)C6H4C(+)Ar2, respectively.