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Volumn 17, Issue 26, 2011, Pages 7167-7171

RhIII-catalyzed oxidative olefination of vinylic C-H bonds: Efficient and selective access to Di-unsaturated α-amino acid derivatives and other linear 1,3-butadienes

Author keywords

amino acids; butadienes; C H activation; oxidative Heck coupling; rhodium

Indexed keywords

1 ,3 BUTADIENE; AMINO ACID DERIVATIVES; C-H ACTIVATION; C-H BOND; CROSS-COUPLINGS; OLEFINATION; OXIDATIVE HECK-COUPLING;

EID: 79958782198     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.201101340     Document Type: Article
Times cited : (221)

References (118)
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    • For selected papers concerning intermolecular Pd-catalyzed oxidative olefination reactions, see
    • For selected papers concerning intermolecular Pd-catalyzed oxidative olefination reactions, see
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    • For other examples of Rh-catalyzed oxidative olefination reactions, see
    • For other examples of Rh-catalyzed oxidative olefination reactions, see
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    • For selected examples of vinylic C-H functionalization reactions, see
    • For selected examples of vinylic C-H functionalization reactions, see
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    • see, reference [5c]
    • see, reference [5c].
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    • For the Pd-catalyzed synthesis of dienes, see
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    • For selected papers dealing with the preparation of 1,3-butadienes, see
    • For selected papers dealing with the preparation of 1,3-butadienes, see
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    • A trace of a third diastereomer is barely detectable (<5 %)
    • A trace of a third diastereomer is barely detectable (<5 %).
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    • Examples of powerful C-H activations utilizing acetanilides as substrates
    • Examples of powerful C-H activations utilizing acetanilides as substrates
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    • In the cases of N-(1-phenyl-vinyl)-acetamide and N-vinylacetamide, complete degradation of the starting materials was observed. (Z)-N-Acetyl dehydrophenylalanine methyl ester, however, did not react
    • In the cases of N-(1-phenyl-vinyl)-acetamide and N-vinylacetamide, complete degradation of the starting materials was observed. (Z)-N-Acetyl dehydrophenylalanine methyl ester, however, did not react.
  • 105
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    • Subjecting product 4 a to the standard reaction conditions (Scheme 1) did not alter the E/Z ratio, suggesting that isomerization occurs during product formation. See reference [22]
    • Subjecting product 4 a to the standard reaction conditions (Scheme 1) did not alter the E/Z ratio, suggesting that isomerization occurs during product formation. See reference [22].
  • 106
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    • The corresponding cyclic compound 4 b′ with a Z-configuration exclusively was obtained as a by-product in 12 % isolated yield
    • The corresponding cyclic compound 4 b′ with a Z-configuration exclusively was obtained as a by-product in 12 % isolated yield.
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    • For the use of 7 a in asymmetric organocatalysis, see
    • For the use of 7 a in asymmetric organocatalysis, see:, T. Jousseaume, N. E. Wurz, F. Glorius, Angew. Chem. 2011, 123, 1446
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    • Jousseaume, T.1    Wurz, N.E.2    Glorius, F.3
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    • III-catalyzed C-H bond functionalization of alkenes (especially enamide 7 a) with internal alkynes, leading to pyrroles appeared
    • III-catalyzed C-H bond functionalization of alkenes (especially enamide 7 a) with internal alkynes, leading to pyrroles appeared
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    • note
    • 2, DCE, 120 °C, 16 h. Compound 10 b was obtained starting from 8 b, 10 c from 8 a (Scheme 2). Compound 10 f is drawn as the main regioisomer, the yield of the minor one (10 g) is indicated in brackets; see the Supporting Information.
  • 114
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    • When ethylene was used as partner, only oligomers were detected. Mono- and di-substituted aliphatic olefins, that is, 3,3-dimethyl-1-butene or cyclohexene, yield only traces of product under the reaction conditions
    • When ethylene was used as partner, only oligomers were detected. Mono- and di-substituted aliphatic olefins, that is, 3,3-dimethyl-1-butene or cyclohexene, yield only traces of product under the reaction conditions.
  • 115
    • 79958778187 scopus 로고    scopus 로고
    • See the Supporting Information
    • See the Supporting Information.
  • 116
    • 79958796079 scopus 로고    scopus 로고
    • note
    • 2] was used as a precursor, only starting material was recovered.
  • 117
    • 79958782925 scopus 로고    scopus 로고
    • The two proposed pathways are illustrated by the following equations
    • The two proposed pathways are illustrated by the following equations
  • 118
    • 79958784186 scopus 로고    scopus 로고
    • note
    • A Friedel-Crafts type mechanism involving the condensation of the olefin onto 7 a can be excluded as even electron-poor butylacrylate reacts towards 8 l in good yield. Furthermore, 4-methoxystyrene did not lead to any product formation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.