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Volumn 46, Issue 6, 2007, Pages 909-911

Preparation of substituted cyclopentadienes through platinum(II)-catalyzed cyclization of 1,2,4-trienes

Author keywords

Allenes; Carbenes; Cyclopentadienes; Platinum; Synthetic methods

Indexed keywords

CATALYSIS; PLATINUM; REACTION KINETICS; SUBSTITUTION REACTIONS; SYNTHESIS (CHEMICAL);

EID: 33846670579     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200603986     Document Type: Article
Times cited : (115)

References (41)
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    • For the formation of carbocycles through the transition-metal-catalyzed electrophilic activation of allenes, see: a) T. Miura, K. Kiyota, H. Kusama, K. Lee, H. Kim, S. Kim, P. H. Lee, N. Iwasawa, Org. Lett. 2003, 5, 1725-1728;
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    • 1,2,4-Trienes 1 were readily prepared in three steps [Eq. (2); Ms = methanesulfonyl]. See Supporting Information for details. (Chemical Equation Presented)
    • 1,2,4-Trienes 1 were readily prepared in three steps [Eq. (2); Ms = methanesulfonyl]. See Supporting Information for details. (Chemical Equation Presented)
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    • A related pentadienyl cationic intermediate is proposed in the gold(I)-catalyzed reaction of enynyl actates; see: a) Ref. [5b-d];
    • A related pentadienyl cationic intermediate is proposed in the gold(I)-catalyzed reaction of enynyl actates; see: a) Ref. [5b-d];
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    • The presence of the cyclopropane ring was confirmed mainly on the basis of the presence of geminal protons in a highfield region (δ, 0.1-0.6 ppm) with a small geminal coupling constant J, 3.2 Hz, features that are characteristic of cyclopropane derivatives. The structure was further confirmed by HMBC and differential NOE spectra. See Supporting Information for details of the assignment
    • The presence of the cyclopropane ring was confirmed mainly on the basis of the presence of geminal protons in a highfield region (δ = -0.1-0.6 ppm) with a small geminal coupling constant (J = 3.2 Hz), features that are characteristic of cyclopropane derivatives. The structure was further confirmed by HMBC and differential NOE spectra. See Supporting Information for details of the assignment.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.