RSS-Feed abonnieren
DOI: 10.1055/s-2005-865336
Practical and Efficient Synthesis of Tris(4-formylphenyl)amine, a Key Building Block in Materials Chemistry
Publikationsverlauf
Publikationsdatum:
25. April 2005 (online)
Abstract
A short, practical and efficient preparation of tris(4-formylphenyl)amine, a key building block in materials chemistry, is described. It involves a two-flask synthesis from triphenylamine, which requires shorter overall time than the direct one-flask threefold Vilsmeier-Haack formylation, while giving higher yields. The reaction levels off at the disubstitution stage, due to the deactivation of the bis-iminium intermediate, but hydrolysis of the latter into a less deactivated dialdehyde allows the third formylation to occur. The simple experimental protocol makes this method more convenient than the previously reported procedures.
Key words
materials chemistry - building block - aldehydes - electrophilic aromatic substitutions - Vilsmeier-Haack reaction
- 1
Suzuki H, andMatsumoto M. inventors; Jpn. Kokai Tokkyo Koho, 63163361. - 2
Goto S,Abe N, andSasaki O. inventors; Jpn. Kokai Tokkyo Koho, 01044452. - 3
Kushibiki N,Takeuchi K,Kobayashi H, andMasatomi T. inventors; Eur. Pat. Appl., 771809. - 4
Nam H.Kang DH.Kim JK.Park SY. Chem. Lett. 2000, 1298 - 5
Jiang KJ.Sun YL.Shao KF.Yang LM. Chem. Lett. 2004, 33: 50 - 6
Meng FS.Yao QH.Shen JG.Li FL.Huang CH.Chen KC.Tian H. Synth. Met. 2003, 137: 1543 - 7
Meng F.Liu C.Hua J.Cao Y.Chen K.Tian H. Eur. Polym. J. 2003, 39: 1325 - 8
Elandaloussi EH.Spangler CW. Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.) 1998, 39: 1055 - 9
Holmberg SE.Spangler CW. Polym. Mater. Sci. Eng. 2001, 84: 717 - 10
Stadler S.Feiner F.Bräuchle C.Brandl S.Gompper R. Chem. Phys. Lett. 1995, 245: 292 - 11
Lambert C.Gaschler W.Schmalzlin E.Meerholz K.Brauchle C. J. Chem. Soc., Perkin Trans. 2 1999, 577 - 12
Elandaloussi EH.Spangler CW.Dirk C.Casstevens M.Kumar D.Burzynski R. Mater. Res. Soc. Symp. Proc. 1999, 561: 63 - 13
Drobizhev M.Karotki A.Rebane A.Spangler CW. Opt. Lett. 2001, 26: 1081 - 14
Yoo J.Yang SK.Jeong M.-Y.Ahn HC.Jeon S.-J.Cho BR. Org. Lett. 2003, 5: 645 - 15
Drobizhev M.Karotki A.Dzenis Y.Rebane A.Suo Z.Spangler CW. J. Phys. Chem. B 2003, 107: 7540 - 16
Spangler CW.Suo Z.Drobizhev M.Karotki A.Rebane A. Proc. SPIE-Int. Soc. Opt. Eng. 2003, 4797: 146 - 17
Spangler CW.Suo Z.Drobizhev M.Karotki A.Rebane A. NATO Sci. Ser. II 2003, 100: 139 - 18
Mongin O.Porrès L.Katan C.Pons T.Mertz J.Blanchard-Desce M. Tetrahedron Lett. 2003, 44: 8121 - 19
Lee HJ.Sohn J.Hwang J.Park SY.Choi H.Cha M. Chem. Mater. 2004, 16: 456 - 20
Yang WJ.Kim DY.Kim CH.Jeong M.-Y.Lee SK.Jeon S.-J.Cho BR. Org. Lett. 2004, 6: 1389 - 21
Mongin O.Charlot M.Katan C.Porrès L.Parent M.Pons T.Mertz J.Blanchard-Desce M. Proc. SPIE-Int. Soc. Opt. Eng. 2004, 5516: 9 - 22
Hua JL.Li B.Meng FS.Ding F.Qian SX.Tian H. Polymer 2004, 45: 7143 - 23
Wilson CD. inventors; US Patent, 2558285. - 24
Lai G.Bu XR.Santos J.Mintz EA. Synlett 1997, 1275 - 26
Jin S.-H.Jung J.-E.Yeom I.-S.Moon S.-B.Koh K.Kim S.-H.Gal Y.-S. Eur. Polym. J. 2002, 38: 895
References
This could explain why DMF is often used in larger amounts than POCl3.24 To overcome this problem, other authors tried to use high boiling chlorinated solvents, such as 1,2-dichloroethane, but the yields remained low.19,26