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Volumn 39, Issue 6, 2000, Pages 1066-1068

Facile synthesis of β-derivatized porphyrins - Structural characterization of a β - β-bis-porphyrin

Author keywords

Boronates; Cross coupling; Exciton coupling; Porphyrinoids

Indexed keywords

PORPHYRIN DERIVATIVE;

EID: 0034677692     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(20000317)39:6<1066::AID-ANIE1066>3.0.CO;2-G     Document Type: Article
Times cited : (109)

References (48)
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    • a) A. Osuka, H. Shimidzu, Angew. Chem. 1997, 109, 93; Angew. Chem. Int. Ed. Engl. 1997, 36, 135;
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    • (1999) Angew. Chem. Int. Ed. , vol.38 , pp. 176
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    • 0028086545 scopus 로고
    • Compound 1 was obtained as a minor product in the standard etioporphyrin I synthesis. Apparently an ethyl group was replaced by bromine during the formation of the dipyrrylmethene precursor under harsh bromination conditions. Being less basic, 1 can be separated from etioporphyrin by acid extractions, for example, 20 g of 1 from 3 kg of etioporphyrin. Other Heck reactions with homologous β-bromoporphyrins have been reported, see H. Ali, J. E. van Lier, Tetrahedron 1994, 50, 11 933.
    • (1994) Tetrahedron , vol.50 , pp. 11933
    • Ali, H.1    Van Lier, J.E.2
  • 33
    • 0342738774 scopus 로고    scopus 로고
    • note
    • 2Zn: calcd: 638.27712; found: 638.27705.
  • 35
    • 0343608727 scopus 로고    scopus 로고
    • note
    • 8Zn: calcd: C 70.24, H 6.09, N 10.92; found: C 70.32, H 6.12, N 11.03.
  • 36
    • 0342303651 scopus 로고    scopus 로고
    • note
    • 2 = 0.1983. Crystallographic data (excluding structure factors) for the structure reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no. CCDC-133672. Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB21EZ, UK (fax: (+44) 1223-336-033; e-mail: deposit@ccdc.cam. ac.uk).
  • 41
    • 0343173191 scopus 로고    scopus 로고
    • note
    • x should red-shift about the unperturbed B band. In 3a, both transitions red-shift relative to the B hand of the monomer. The same situation occurs for the meso - β and the meso - meso bis-porphyrins of ref. [16b)]. These red shifts indicate that the exciton coupling in porphyrins linked by a single bond is augmented by other factors; one likely factor is electronic coupling between porphyrin subunits across the C-C bond.
  • 42
    • 0343173190 scopus 로고    scopus 로고
    • note
    • 4OZn: calcd: 616.21806; found: 616.21786.
  • 46
    • 0030838237 scopus 로고    scopus 로고
    • a) Y. Q. Deng, J. A. Roberts, S. M. Peng, C. K. Chang, D. G. Nocera, Angew. Chem. 1997, 109, 2216; Angew. Chem. Int. Ed. Engl. 1997, 36, 2124;
    • (1997) Angew. Chem. Int. Ed. Engl. , vol.36 , pp. 2124


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.