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Volumn 43, Issue 38, 2004, Pages 5063-5065

Synthesis of highly substituted 1,3-butadienes by palladium-catalyzed arylation of internal alkynes

Author keywords

Alkynes; Arylation; C C coupling; Homogeneous catalysis; Palladium

Indexed keywords

BENZENE; CATALYSIS; CATALYST SELECTIVITY; CATALYSTS; PALLADIUM; SILVER; SUBSTITUTION REACTIONS; SYNTHESIS (CHEMICAL);

EID: 4944233291     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200460409     Document Type: Article
Times cited : (78)

References (41)
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    • note
    • In contrast to the reactions with aryl metal reagents, the use of the corresponding methyl metal reagents results in 2:2 coupling to give 1,4-dimethyl-1,3-butadienes.[5,6]
  • 23
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    • note
    • A 1:2 coupling of vinyl boronates with alkynes to give vinylidene cyclopentadienes has been reported.[9b]
  • 25
    • 0030869219 scopus 로고    scopus 로고
    • The use of tetramethyltin, acetylene dicarboxylates, and aryl iodides affords 1:2:1 coupling products: a) R. van Belzen, H. Hoffmann, C. J. Elsevier, Angew. Chem. 1997, 109, 1833; Angew. Chem. Int. Ed. Engl. 1997, 36, 1743;
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    • Van Belzen, R.1    Hoffmann, H.2    Elsevier, C.J.3
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    • 0030869219 scopus 로고    scopus 로고
    • The use of tetramethyltin, acetylene dicarboxylates, and aryl iodides affords 1:2:1 coupling products: a) R. van Belzen, H. Hoffmann, C. J. Elsevier, Angew. Chem. 1997, 109, 1833; Angew. Chem. Int. Ed. Engl. 1997, 36, 1743;
    • (1997) Angew. Chem. Int. Ed. Engl. , vol.36 , pp. 1743
  • 28
    • 4944243434 scopus 로고    scopus 로고
    • note
    • CCDC-236 664 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/ retrieving.html (or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB2 1EZ, UK; fax: (+44) 1223-336-033; or deposit@ ccdc.cam.ac.uk).
  • 29
    • 0001347811 scopus 로고
    • 2O, 3% in 1-propanol). The structure of the by-product shown below was unambiguously determined by its 2D NMR spectra and NOE experiments. A similar product is formed by the reaction of iodobenzene with 3-hexyne: G. Wu, A. L. Rheingold, S. J. Gelb, R. F. Heck, Organometallics 1987, 6, 1941.
    • (1987) Organometallics , vol.6 , pp. 1941
    • Wu, G.1    Rheingold, A.L.2    Gelb, S.J.3    Heck, R.F.4
  • 30
    • 0242490677 scopus 로고    scopus 로고
    • Although the reason why only two molecules of the alkynes are selectively incorporated into the products is not definitive at the present stage, it may be attributed to stabilization of the dienylpalladium intermediate (C in Scheme 4) by chelation; see: X. Zeng, Q. Hu, M. Qian, E.-I. Negishi, J. Am. Chem. Soc. 2003, 125, 13 636.
    • (2003) J. Am. Chem. Soc. , vol.125 , pp. 13636
    • Zeng, X.1    Hu, Q.2    Qian, M.3    Negishi, E.-I.4
  • 31
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    • 2O at 120 °C for 0.5 h gave predominantly diene 3a in 56% yield, along with a small amount of 4a (2%). This result indicates that the diene formation can take place on Pd and that the participation of vinyl silver(I) species cannot be excluded.
    • (2004) Chem. Commun. , pp. 192
    • Nishihara, Y.1    Onodera, H.2    Osakada, K.3
  • 32
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    • 2O at 120 °C for 0.5 h gave predominantly diene 3a in 56% yield, along with a small amount of 4a (2%). This result indicates that the diene formation can take place on Pd and that the participation of vinyl silver(I) species cannot be excluded.
    • (1971) J. Am. Chem. Soc. , vol.93 , pp. 1379
    • Whitesides, G.M.1    Casey, C.P.2    Krieger, J.K.3
  • 33
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    • G. Dyker, A. Kellner, Tetrahedron Lett. 1994, 35, 7633. Z,Z Butadienes are also known to undergo thermal isomerization to the corresponding E,E isomers via cyclobutenes: G. A. Doorakian, H. H. Freedman, J. Am. Chem. Soc. 1968, 90, 5310.
    • (1994) Tetrahedron Lett. , vol.35 , pp. 7633
    • Dyker, G.1    Kellner, A.2
  • 34
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    • G. Dyker, A. Kellner, Tetrahedron Lett. 1994, 35, 7633. Z,Z Butadienes are also known to undergo thermal isomerization to the corresponding E,E isomers via cyclobutenes: G. A. Doorakian, H. H. Freedman, J. Am. Chem. Soc. 1968, 90, 5310.
    • (1968) J. Am. Chem. Soc. , vol.90 , pp. 5310
    • Doorakian, G.A.1    Freedman, H.H.2
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    • 0 species with two alkyne molecules cannot be excluded. Both mechanisms via palladacycle[12,18a] and acyclic intermediates[18b] have been proposed for diene synthesis reactions: a) E. Shirakawa, H. Yoshida, Y. Nakao, T. Hiyama, J. Am. Chem. Soc. 1999, 121, 4290;
    • (1999) J. Am. Chem. Soc. , vol.121 , pp. 4290
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.