메뉴 건너뛰기




Volumn 10, Issue 25, 2012, Pages 4847-4850

Precipitation-driven self-sorting of imines

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDES;

EID: 84862227286     PISSN: 14770520     EISSN: None     Source Type: Journal    
DOI: 10.1039/c2ob25736j     Document Type: Article
Times cited : (29)

References (20)
  • 1
    • 63049126809 scopus 로고    scopus 로고
    • in, ed. Herdewijn and M. V. Kisakürek, Helvetica Chimica Acta/Wiley-VCH, Zürich/Weinheim, 185-214
    • B. M. Rode, D. Fitz and T. Jackschitz, in Origin of Life: Chemical Approach, ed., P. Herdewijn, and, M. V. Kisakürek, Helvetica Chimica Acta/Wiley-VCH, Zürich/Weinheim, 2008, pp. 185-214
    • (2008) Origin of Life: Chemical Approach
    • Rode, B.M.1    Fitz, D.2    Jackschitz, T.3
  • 18
    • 80052080342 scopus 로고    scopus 로고
    • Yields of individual imines were calculated from the overall mass recovery of the mixture and 1H NMR spectra integration data. Isolation of individual imines would have likely altered the distribution of the products and was not performed When H2O was slowly added to this diluted mixture of imines, slow and incomplete precipitation occurred, yielding mixtures of imines in both the precipitate and the mother liquor Imine mixtures precipitated from EtOH-H2O exhibit a certain degree of kinetic stability after re-dissolution in MeCN: mixture obtained in experiment shown in Scheme 2 (bottom) did not change in composition even after 7 days in MeCN solution at 25 °C. Equilibration into the random mixture of products was achieved only after heating in MeCN at reflux for 24 h. This kinetic stability is perhaps unsurprising, as rapid imine exchange often requires catalysis by free anilines. See, for example
    • K. Osowska O. Š. Miljanić Angew. Chem., Int. Ed. 2011 50 8345 8349
    • (2011) Angew. Chem., Int. Ed. , vol.50 , pp. 8345-8349
    • Osowska, K.1    Miljanić, O.Š.2
  • 20
    • 33845461876 scopus 로고    scopus 로고
    • Concentrations higher than 209 mM were not studied because they led to the formation of undesired non-imine products. Most significant of these (29%) was the acetal formed between aldehyde C and EtOH which was used as the solvent
    • A. Dirksen S. Dirksen T. M. Hackeng P. E. Dawson J. Am. Chem. Soc. 2006 138 15602 15603
    • (2006) J. Am. Chem. Soc. , vol.138 , pp. 15602-15603
    • Dirksen, A.1    Dirksen, S.2    Hackeng, T.M.3    Dawson, P.E.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.