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Volumn 10, Issue 18, 1999, Pages 3559-3570

Syntheses of C2-symmetric vicinal diamines derived from tartaric acid

Author keywords

[No Author keywords available]

Indexed keywords

DIAMINE; TARTARIC ACID;

EID: 0033461156     PISSN: 09574166     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0957-4166(99)00353-5     Document Type: Article
Times cited : (16)

References (22)
  • 2
    • 0003544583 scopus 로고
    • Ojima, I., Ed.; VCH: Weinheim
    • Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994; Catalytic Asymmetric Synthesis; Ojima, I., Ed.; VCH: Weinheim, 1993.
    • (1993) Catalytic Asymmetric Synthesis
  • 12
    • 0042534896 scopus 로고
    • However, the experimental and spectroscopic data of 4c were not reported. 4c was prepared from 2,3-O-isopropylidene-L-threitol [2,3-O-Isopropylidene-L-threitol is readily available from (+)-diethyl tartrate in two steps. We used the procedure described by Holy, A. (Collect. Czech. Chem. Commun. 1982, 47, 173-189; acetalization by triethyl orthoformate and acetone followed by reduction of the ethyl ester groups by sodium borohydride in absolute ethanol)] by double alkylation with 2-(bromomethyl)naphthalene followed by acetonide cleavage (see Experimental).
    • (1982) Collect. Czech. Chem. Commun. , vol.47 , pp. 173-189
    • Holy, A.1
  • 14
    • 0026571179 scopus 로고
    • 4 resulted in cleavage of β-naphthylmethoxy groups to 2-methylnaphthalene. Use of other reducing agents (ammonium formate, Pd/C, MeOH or sodium borohydride in the presence of copper sulfate) led to complete decomposition.
    • (1992) Tetrahedron Lett. , vol.33 , pp. 639-642
    • Oishi, T.1    Hirama, M.2
  • 15
    • 0343079409 scopus 로고    scopus 로고
    • note
    • The catalytic hydrogenation of diazide 6c to afford diamine 3c was also successful in isopropanol at 45°C, but THF was found to be more convenient. The catalytic hydrogenation of diazide 6a to diamine 3a was carried out in methanol, see Ref. 4, but THF is also an excellent solvent.
  • 16
    • 0343079410 scopus 로고    scopus 로고
    • note
    • 3N, cat. DMAP, refluxing THF) only afforded a very low yield of 6d (14%).
  • 18
    • 0343515517 scopus 로고    scopus 로고
    • note
    • In this case, palladium on carbon was a totally ineffective catalyst. However, when Pearlman's catalyst was used, diamine 6d was contaminated by colloidal palladium, which could not be removed.
  • 21
    • 0033593407 scopus 로고    scopus 로고
    • Recently, the vicinal diamines 3a-d were used for the preparation of salen Mn(III) complexes as catalysts for the enantioselective epoxidation of unfunctionalized alkenes: Scheurer, A.; Mosset, P.; Spiegel, M.; Saalfrank, R. W. Tetrahedron 1999, 55, 1063-1078.
    • (1999) Tetrahedron , vol.55 , pp. 1063-1078
    • Scheurer, A.1    Mosset, P.2    Spiegel, M.3    Saalfrank, R.W.4
  • 22
    • 0343951310 scopus 로고    scopus 로고
    • note
    • Crude acetonide 8 was obtained along with residual 2-(bromomethyl)naphthalene and was used as such for the next step. Subsequent acetonide cleavage yielded crystalline diol 4c which was easily purified.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.