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Volumn 76, Issue 2, 2011, Pages 732-735

Titanocene(III)-promoted Barbier-type crotylation of carbonyl compounds

Author keywords

[No Author keywords available]

Indexed keywords

CARBONYL COMPOUNDS; HIGH YIELD; OPTIMIZED CONDITIONS; SELECTIVE GENERATION; STEREOSELECTIVE METHOD; TITANOCENES;

EID: 78651480333     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo102269d     Document Type: Article
Times cited : (22)

References (71)
  • 2
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    • For a list of metals capable of promoting Barbier-type allylations, see:, 2nd ed.; Wiley-VCH: New York,; pp
    • For a list of metals capable of promoting Barbier-type allylations, see: Larock, R. C. Comprehensive Organic Transformations, 2nd ed.; Wiley-VCH: New York, 1999; pp 1126 -1133.
    • (1999) Comprehensive Organic Transformations , pp. 1126-1133
    • Larock, R.C.1
  • 9
    • 0037486826 scopus 로고    scopus 로고
    • For relevant reviews, see
    • For relevant reviews, see: Fürstner, A. Chem. Rev. 1999, 99, 991-1045
    • (1999) Chem. Rev. , vol.99 , pp. 991-1045
    • Fürstner, A.1
  • 11
    • 0026067767 scopus 로고
    • Sm(II) usually gives mixtures of α-and γ-regioisomers
    • Sm(II) usually gives mixtures of α-and γ-regioisomers: Collin, J.; Bied, C.; Kagan, H. B. Tetrahedron Lett. 1991, 32, 629-630
    • (1991) Tetrahedron Lett. , vol.32 , pp. 629-630
    • Collin, J.1    Bied, C.2    Kagan, H.B.3
  • 58
    • 78651492223 scopus 로고    scopus 로고
    • Moreover, it is known that the nature of the halide coordinated to titanocene(III) also affects the syn: anti stereoselection; see ref 14b
    • Moreover, it is known that the nature of the halide coordinated to titanocene(III) also affects the syn: anti stereoselection; see ref 14b.
  • 62
    • 17444395097 scopus 로고    scopus 로고
    • For recent overviews on organometallic catalysts, see:;, Eds.; Wiley VCH: Weinheim, Germany
    • For recent overviews on organometallic catalysts, see: Shibasaki, M.; Yamamoto, Y., Eds. Multimetallic Catalysts in Organic Synthesis; Wiley VCH: Weinheim, Germany, 2004.
    • (2004) Multimetallic Catalysts in Organic Synthesis
    • Shibasaki, M.1    Yamamoto, Y.2
  • 64
    • 78651474264 scopus 로고    scopus 로고
    • The excess of Mn and 2,4,6-collidine can be recovered at the end of the experiments by filtering and simple acid-base extraction. Subsequently, both recovered collidine and Mn dust can be used in further experiments
    • The excess of Mn and 2,4,6-collidine can be recovered at the end of the experiments by filtering and simple acid-base extraction. Subsequently, both recovered collidine and Mn dust can be used in further experiments.
  • 66
    • 78651520646 scopus 로고    scopus 로고
    • The existence of crotyl radicals as intermediates in this reaction was confirmed by carrying out some experiments with 3-chloro-1-butene as a pronucleophile. The results were identical to those obtained from crotyl chloride
    • The existence of crotyl radicals as intermediates in this reaction was confirmed by carrying out some experiments with 3-chloro-1-butene as a pronucleophile. The results were identical to those obtained from crotyl chloride.
  • 68
    • 0003887404 scopus 로고
    • It is generally assumed that coupling reactions between free radicals do not require any activation energy because new bonds are formed rather than existing ones broken; see:;, 3rd ed.; Harper & Row: New York,; p
    • It is generally assumed that coupling reactions between free radicals do not require any activation energy because new bonds are formed rather than existing ones broken; see: Lowry, T. H.; Richardson, K. S. Mechanism and Theory in Organic Chemistry, 3rd ed.; Harper & Row: New York, 1987; p 738.
    • (1987) Mechanism and Theory in Organic Chemistry , pp. 738
    • Lowry, T.H.1    Richardson, K.S.2
  • 69
    • 78651505358 scopus 로고    scopus 로고
    • 4 cannot completely drive the reaction to the γ-isomer
    • 4 cannot completely drive the reaction to the γ-isomer.
  • 71
    • 78651496408 scopus 로고    scopus 로고
    • All new compounds are fully described in the Supporting Information
    • All new compounds are fully described in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.