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Volumn 73, Issue 10, 2008, Pages 3950-3953

An expedient synthesis of mellitic triimides

Author keywords

[No Author keywords available]

Indexed keywords

AMINO ACIDS; DEHYDRATION; ESTERS; HEAT TREATMENT; SALTS; SYNTHESIS (CHEMICAL);

EID: 43449132112     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo800185v     Document Type: Article
Times cited : (13)

References (50)
  • 2
    • 38649084060 scopus 로고    scopus 로고
    • These classes of aromatic diimides have proven, and continue to prove, to be versatile and valuable building blocks for new applications in molecular recognition and as components of functional materials. For selected examples from the past two years, see: a
    • These classes of aromatic diimides have proven, and continue to prove, to be versatile and valuable building blocks for new applications in molecular recognition and as components of functional materials. For selected examples from the past two years, see: (a) Bradford, V. J.; Iverson, B. L. J. Am. Chem. Soc. 2008, 130, 1517-1524.
    • (2008) J. Am. Chem. Soc , vol.130 , pp. 1517-1524
    • Bradford, V.J.1    Iverson, B.L.2
  • 21
  • 25
    • 0031161877 scopus 로고    scopus 로고
    • Mellitic triimides have been reported as components of network polymers. Clemenson, P. I.; Pandiman, D.; Pearson, J. T.; Lavery, A. J. Polym. Eng. Sci. 1997, 37, 966-977.
    • Mellitic triimides have been reported as components of network polymers. Clemenson, P. I.; Pandiman, D.; Pearson, J. T.; Lavery, A. J. Polym. Eng. Sci. 1997, 37, 966-977.
  • 26
    • 43449126022 scopus 로고    scopus 로고
    • Some of this chemistry was explored in parallel with that reported in ref 1
    • Some of this chemistry was explored in parallel with that reported in ref 1.
  • 29
    • 43449119921 scopus 로고    scopus 로고
    • For example, treatment of tetramethyl pyromellitate with 2 equiv of n-butylamine in DMF at 140°C for 16 h gave a 35% yield of N,N′-di-n-butylpyromellitimide.
    • For example, treatment of tetramethyl pyromellitate with 2 equiv of n-butylamine in DMF at 140°C for 16 h gave a 35% yield of N,N′-di-n-butylpyromellitimide.
  • 30
    • 0035930710 scopus 로고    scopus 로고
    • Traces of triimide formation could be found from reactions of this material with 3 equiv of primary amines; however, the major isolable products were hexaamides
    • Ranganathan, S.; Muraleedharan, K. M.; Chandrashekhar Rao, C. H.; Vairamani, M.; Karle, I. L.; Gilardi, R. D. Chem. Commun. 2001, 2544-2545, Traces of triimide formation could be found from reactions of this material with 3 equiv of primary amines; however, the major isolable products were hexaamides.
    • (2001) Chem. Commun , pp. 2544-2545
    • Ranganathan, S.1    Muraleedharan, K.M.2    Chandrashekhar Rao, C.H.3    Vairamani, M.4    Karle, I.L.5    Gilardi, R.D.6
  • 31
    • 43449108665 scopus 로고    scopus 로고
    • Most of the literature concerning the preparation and properties of mellitic trianhydride is quite dated, a Meyer, H, Raudnitz, H. Chem. Ber. 1930, 63, 2010-2018
    • Most of the literature concerning the preparation and properties of mellitic trianhydride is quite dated. (a) Meyer, H.; Raudnitz, H. Chem. Ber. 1930, 63, 2010-2018.
  • 37
    • 0343775847 scopus 로고    scopus 로고
    • The more recent exceptions principally relate to structure. (g) Ermer, O.; Neudorfl, J. Helv. Chim. Acta 2000, 83, 300-309.
    • The more recent exceptions principally relate to structure. (g) Ermer, O.; Neudorfl, J. Helv. Chim. Acta 2000, 83, 300-309.
  • 38
    • 0035877365 scopus 로고    scopus 로고
    • (h) Erkoc, S. THEOCHEM 2001, 542, 95-99.
    • (2001) THEOCHEM , vol.542 , pp. 95-99
    • Erkoc, S.1
  • 39
    • 43449094449 scopus 로고    scopus 로고
    • Reference 12a reports the preparation of mellitic trianhydride from mellitic acid by treatment with acetyl chloride. Our attempts to reproduce this chemistry led to inconclusive results: the poor solubility of the product, or products, eliminated the possibility of solution NMR, while both IR and solid-state NMR spectra were inconclusive. When susbstituted for mellitic acid in the preparations described here, mellitic triimides were formed in low and variable yield. However, the acid-amide materials potentially formed en route to trimides via anhydride ring opening in this case would also be formed in the initial dehydrations of the triammonium salts described in this work. Thus, initial preparation of mellitic trianhydride may now be regarded as an uneccessary embellishment of the current synthesis
    • Reference 12a reports the preparation of mellitic trianhydride from mellitic acid by treatment with acetyl chloride. Our attempts to reproduce this chemistry led to inconclusive results: the poor solubility of the product, or products, eliminated the possibility of solution NMR, while both IR and solid-state NMR spectra were inconclusive. When susbstituted for mellitic acid in the preparations described here, mellitic triimides were formed in low and variable yield. However, the acid-amide materials potentially formed en route to trimides via anhydride ring opening in this case would also be formed in the initial dehydrations of the triammonium salts described in this work. Thus, initial preparation of mellitic trianhydride may now be regarded as an uneccessary embellishment of the current synthesis.
  • 40
    • 43449106563 scopus 로고    scopus 로고
    • Reaction of the hexamethyl ester of mellitic acid with 3 equiv of p-toluidine in DMSO at 170°C for 16 h gave a 10% yield of triimide 1h. This material was spectroscopically indistinguishable from samples prepared by the current route and also proved a match to the material described in ref 6.
    • Reaction of the hexamethyl ester of mellitic acid with 3 equiv of p-toluidine in DMSO at 170°C for 16 h gave a 10% yield of triimide 1h. This material was spectroscopically indistinguishable from samples prepared by the current route and also proved a match to the material described in ref 6.
  • 41
    • 43449110229 scopus 로고    scopus 로고
    • n-alkyl triimides are slowly attacked by primary amines
    • Solution NMR experiments have revealed that, describes the preparation of a mellitic hexaamide resulting from in situ solution ring opening of an intermediate imide
    • Solution NMR experiments have revealed that n-alkyl triimides are slowly attacked by primary amines. Furthermore, ref 11 describes the preparation of a mellitic hexaamide resulting from in situ solution ring opening of an intermediate imide.
    • Furthermore
  • 42
    • 43449130995 scopus 로고    scopus 로고
    • For example, a preparation of triethylmellitic triimide (1e) that employed a 6:1 ratio of amine to mellitic acid reduced the isolated yield of product to 22%.
    • For example, a preparation of triethylmellitic triimide (1e) that employed a 6:1 ratio of amine to mellitic acid reduced the isolated yield of product to 22%.
  • 43
    • 43449134481 scopus 로고    scopus 로고
    • Reactants and solvents were used at exactly five times the amounts and reported in the Example Preparative Procedure Supporting Information, A 1 L flask was employed to ensure the intermediate ammonium salt was spread into a relatively thin crust on evaporation. Yield: 1.26g, 37
    • Reactants and solvents were used at exactly five times the amounts and volumes reported in the Example Preparative Procedure (Supporting Information). A 1 L flask was employed to ensure the intermediate ammonium salt was spread into a relatively thin crust on evaporation. Yield: 1.26g, 37%.
  • 44
    • 43449104818 scopus 로고    scopus 로고
    • The lower average yields in these cases may reflect the lower nucleophilicity of anilines, when compared with amines, in the imide ring-closing reaction, though steric factors are also likely involved
    • The lower average yields in these cases may reflect the lower nucleophilicity of anilines, when compared with amines, in the imide ring-closing reaction, though steric factors are also likely involved.
  • 45
    • 43449089875 scopus 로고    scopus 로고
    • All IR spectra were recorded as Nujol mulls
    • All IR spectra were recorded as Nujol mulls.
  • 46
    • 8644222134 scopus 로고    scopus 로고
    • The amines or anilines employed in these attempted syntheses were 6-amino-1-hexene, 4-vinylaniline (Bertini, V.; Silvana, A.; Pocci, M.; Lucchesini, N.; Picci, N.; Iemma, F. Tetrahedron 2004, 60, 11407-11414.),
    • The amines or anilines employed in these attempted syntheses were 6-amino-1-hexene, 4-vinylaniline (Bertini, V.; Silvana, A.; Pocci, M.; Lucchesini, N.; Picci, N.; Iemma, F. Tetrahedron 2004, 60, 11407-11414.),
  • 47
    • 33749574583 scopus 로고    scopus 로고
    • propargylamine (to prepare the known triimide 1a), 4-ethynylaniline, 4-aminobutryaldehyde dimethyl acetal, 3-aminobenzaldehyde dimethyl acetal (Dear, A. E.; Liu, H. B.; Mayes, P. A.; Perlmutter, P. Org. Biomol. Chem. 2006, 4, 3778-3784.), and N-Boc- ethylenediamine.
    • propargylamine (to prepare the known triimide 1a), 4-ethynylaniline, 4-aminobutryaldehyde dimethyl acetal, 3-aminobenzaldehyde dimethyl acetal (Dear, A. E.; Liu, H. B.; Mayes, P. A.; Perlmutter, P. Org. Biomol. Chem. 2006, 4, 3778-3784.), and N-Boc- ethylenediamine.
  • 48
    • 61549098162 scopus 로고    scopus 로고
    • A related solid-state synthetic approach to pyromellitic diimide derivatives has recently been reported: Neels, A, González Mantero, D, StoeckliEvans, H. Cryst. Growth Des. 2008, 8, 1147-1153
    • A related solid-state synthetic approach to pyromellitic diimide derivatives has recently been reported: Neels, A.; González Mantero, D.; StoeckliEvans, H. Cryst. Growth Des. 2008, 8, 1147-1153.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.