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Volumn , Issue 1, 2008, Pages 0055-0060

1,2-Diarylethenyl sulfones: Readily-prepared masked diarylethynes for access to aryleneethynylenes

Author keywords

Aldehydes; Alkynes; Arylene ethynylenes; Eliminations; Sulfones

Indexed keywords

ACETYLENE; BENZALDEHYDE DERIVATIVE; SULFONE DERIVATIVE;

EID: 38549116540     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-990924     Document Type: Article
Times cited : (12)

References (28)
  • 2
    • 0003799267 scopus 로고
    • Stang, P. J, Diederich, F, Eds, Wiley-VCH: Weinheim
    • (b) Modern Acetylene Chemistry; Stang, P. J.; Diederich, F., Eds.; Wiley-VCH: Weinheim, 1995.
    • (1995) Modern Acetylene Chemistry
  • 3
    • 33646541223 scopus 로고    scopus 로고
    • For reviews on phenyleneethynylenes, see: c, Springer: Berlin
    • For reviews on phenyleneethynylenes, see: (c) James, D. K.; Tour, J. M. In Topics in Current Chemistry, Vol. 257; Springer: Berlin, 2005, 33-62.
    • (2005) Topics in Current Chemistry , vol.257 , pp. 33-62
    • James, D.K.1    Tour, J.M.2
  • 16
    • 29244447673 scopus 로고    scopus 로고
    • For one-pot double elimination protocols, see: c
    • For one-pot double elimination protocols, see: (c) Orita, A.; Ye, F.; Babu, G.; Ikemoto, T.; Otera, J. Can. J. Chem. 2005, 83, 716.
    • (2005) Can. J. Chem , vol.83 , pp. 716
    • Orita, A.1    Ye, F.2    Babu, G.3    Ikemoto, T.4    Otera, J.5
  • 28
    • 38549142163 scopus 로고    scopus 로고
    • Typical Procedures 1-(3-Bromophenyl)-2-(3-iodophenyl)-1, phenyisulfonyl)ethene (4a, To a THF solution (30 mL) of 3-bromophenylmethyl phenyl sulfone (2.00 g, 6.4 mmol) was added a THF solution of LiHMDS (1.0 M, 7.0 mL, 7.0 mmol) at -78°C, and the mixture was stirred for 0.5 h. A THF solution (8 mL) of 3-iodobenzaldehyde (1.24 g, 5.3 mmol) was added at -78°C, and the mixture was stirred for 1 h. Diethyl chlorophosphate (0.75 mL, 5.4 mmol) was added at -78°C, and the mixture was stirred at r.t. for 1 h. A THF solution of LiHMDS (1.0 M, 5.4 mL, 5.4 mmol) was added at -78°C, and the mixture was stirred at r.t. overnight. After usual workup with EtOAc-aq NH4Cl, the organic layer was evaporated, and the residue was subjected to column chromatography on silica gel (10% EtOAc-hexane) to furnish 4a (2.24 g, 80, Compound 4a: E/Z, 88:12 the geometry of E- or Z-isomers was not determined, several signals overlapped in 13
    • 3): δ = 55.2, 87.1, 88.2, 89.9, 90.2, 114.0, 115.0, 122.1, 123.0, 124.0, 125.0, 128.4, 129.7, 130.1, 130.9, 131.4, 131.5, 133.1, 134.3, 134.4, 159.7.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.