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Volumn 72, Issue 12, 2007, Pages 4396-4400

The first sequential reaction promoted by manganese: Complete stereoselective synthesis of (E)-α,β-unsaturated esters from 2,2-dichloroesters and aldehydes

Author keywords

[No Author keywords available]

Indexed keywords

DICHLOROESTERS; DOUBLE BONDS; STEREOSELECTIVE SYNTHESIS;

EID: 34250211446     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo070209w     Document Type: Article
Times cited : (17)

References (77)
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    • To see some synthetic applications of manganese: (a) Kakiya, H.; Nishimae, S.; Shinokubo, H.; Oshima, K. Tetrahedron 2001, 57, 8807-8815.
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    • For preparations of active manganese (Mn*), see: (a) Fürstner, A.; Brunner, H. Tetrahedron Lett. 1996, 37, 7009-7012.
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    • The reaction between an enolate derived from a 2-bromoester and the carbonyl compound affords, in high yields, the corresponding 2,3-epoxyester (Darzens' reaction) as the major product instead of the desirable 2-bromo-3-hydroxyester, consequently the reaction must be carried out at low temperatures (-90 °C).
    • The reaction between an enolate derived from a 2-bromoester and the carbonyl compound affords, in high yields, the corresponding 2,3-epoxyester (Darzens' reaction) as the major product instead of the desirable 2-bromo-3-hydroxyester, consequently the reaction must be carried out at low temperatures (-90 °C).
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    • Only one example (ethyl 3-phenylprop-2-enoate) has been synthesised using a sequential reaction of ethyl dibromoacetate and benzaldehyde promoted by Fe(0): Falk, J. R.; Bejot, D. K.; Bandyopadhyay, A.; Joseph, S.; Mioskowski, C. J. Org. Chem. 2006, 71, 8178-8182.
    • (c) Only one example (ethyl 3-phenylprop-2-enoate) has been synthesised using a sequential reaction of ethyl dibromoacetate and benzaldehyde promoted by Fe(0): Falk, J. R.; Bejot, D. K.; Bandyopadhyay, A.; Joseph, S.; Mioskowski, C. J. Org. Chem. 2006, 71, 8178-8182.
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    • (d) Using a zinc-metal-promoted olefination: Ishino, Y.; Mihara, M.; Nishihama, S.; Nishiguchi, I. Bull. Chem. Soc. Jpn. 1998, 71, 2669-2672.
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    • 2 see: (c) Krief, A.; Laval, A. M. Chem. Rev. 1999, 99, 745-777.
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    • 2, see: (a) Takai, K. Org. React. 2004, 64, 253-612.
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    • 2-promoted sequential reactions: (f) Barma, D. K.; Kundu, A.; Bandyopadhyay, A.; Sangras, B.; Briot, A.; Mioskowski, C.; Falck, J. R. Tetrahedron Lett. 2004, 45, 5917-5920.
    • 2-promoted sequential reactions: (f) Barma, D. K.; Kundu, A.; Bandyopadhyay, A.; Sangras, B.; Briot, A.; Mioskowski, C.; Falck, J. R. Tetrahedron Lett. 2004, 45, 5917-5920.
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    • To see a recent Fe(0)-mediated sequential reaction utilized in the synthesis of ethyl 3-phenylprop-2-enoate, see ref 16c
    • To see a recent Fe(0)-mediated sequential reaction (utilized in the synthesis of ethyl 3-phenylprop-2-enoate), see ref 16c.
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    • 2-CHCOCl.
    • 2-CHCOCl.
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    • Compounds 2a and 2b were available from commercial sources
    • Compounds 2a and 2b were available from commercial sources.
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    • The coupling constant between the olefmic protons of compounds 3 were in accordance with the average literature values: Silverstein, R. M.; Bassler, G. C.; Morrill T. C. In Spectrometric Identification of Organic Compounds; John Wiley and Sons: New York, 1991; Chapter 4, Appendix F, p 221. In addition, values of coupling constants of olefmic protons were in accordance with the values described in the literature for analogous alkenes, see references 5b, 5c, 10a, 16, and 25.
    • The coupling constant between the olefmic protons of compounds 3 were in accordance with the average literature values: Silverstein, R. M.; Bassler, G. C.; Morrill T. C. In Spectrometric Identification of Organic Compounds; John Wiley and Sons: New York, 1991; Chapter 4, Appendix F, p 221. In addition, values of coupling constants of olefmic protons were in accordance with the values described in the literature for analogous alkenes, see references 5b, 5c, 10a, 16, and 25.
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    • 2 (prepared by the method described in Concellón, J. M.; Rodríguez-Solla, H.; Bardales, E.; Huerta, M. Eur. J. Org. Chem. 2003, 1775-1778), 1.1 euro; 1 mmol Mn* (prepared by the method described in reference 2d), 0.5 euro.
    • 2 (prepared by the method described in Concellón, J. M.; Rodríguez-Solla, H.; Bardales, E.; Huerta, M. Eur. J. Org. Chem. 2003, 1775-1778), 1.1 euro; 1 mmol Mn* (prepared by the method described in reference 2d), 0.5 euro.
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    • Wittig reactions carried out with enolizable carbonyl compounds can generate alkenes in very low yield: Maryanoff, B. E, Reitz, A. B. Chem. Rev. 1989, 89, 863-927
    • Wittig reactions carried out with enolizable carbonyl compounds can generate alkenes in very low yield: Maryanoff, B. E.; Reitz, A. B. Chem. Rev. 1989, 89, 863-927.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.