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Volumn 72, Issue 4, 2007, Pages 1541-1544

A tetramethoxybenzophenone as efficient triplet photocatalyst for the transformation of diazo compounds

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOPROPANATION; PHOTOCATALYSTS; TETRAMETHOXYBENZOPHENONE;

EID: 33846975475     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo062426n     Document Type: Article
Times cited : (21)

References (25)
  • 9
  • 11
    • 0034251262 scopus 로고    scopus 로고
    • This is one of the few examples of solvent-dependent inversion of configuration in BP derivatives: (a) Singh, A. K, Bhasikuttan, A. C, Palit, D. K, Mittal, J. P. J. Phys. Chem. A 2000, 104, 7002
    • This is one of the few examples of solvent-dependent inversion of configuration in BP derivatives: (a) Singh, A. K.; Bhasikuttan, A. C.; Palit, D. K.; Mittal, J. P. J. Phys. Chem. A 2000, 104, 7002.
  • 18
    • 33846982755 scopus 로고    scopus 로고
    • max = 320 nm). Other sharp emissions are ca. 400, 440, and 540 nm.
    • max = 320 nm). Other sharp emissions are ca. 400, 440, and 540 nm.
  • 19
    • 0000238090 scopus 로고    scopus 로고
    • The formation of these types of products in BP-photosensitized transformation of diazo compounds has not been previously reported. The structure of 5b was assigned by comparison with 5a, which has been synthesized (in a 55% yield) by Pd(II)-mediated cyclization of 1a Taber, D. F, Amedio, J. C, Jr, Sherrill, R. G. J. Org. Chem. 1986, 51, 3382, No similar studies have been done for 1b,c
    • The formation of these types of products in BP-photosensitized transformation of diazo compounds has not been previously reported. The structure of 5b was assigned by comparison with 5a, which has been synthesized (in a 55% yield) by Pd(II)-mediated cyclization of 1a (Taber, D. F.; Amedio, J. C., Jr.; Sherrill, R. G. J. Org. Chem. 1986, 51, 3382). No similar studies have been done for 1b,c.
  • 20
    • 33846998840 scopus 로고    scopus 로고
    • It has been reported that, upon photoexcitation of TMBP in methanol, a transient absorption attributed to ketyl radical is observed.8 However, lamp irradiation of this ketone in methanol revealed its photostability less than 5% of decomposition, 2 h of irradiation
    • 8 However, lamp irradiation of this ketone in methanol revealed its photostability (less than 5% of decomposition, 2 h of irradiation).
  • 21
    • 27544505552 scopus 로고    scopus 로고
    • Compound 5c has been obtained in a 21% yield from 6-methyl-3,4-dihydropyran-2-one: Hird, A. W.; Hoveyda, A. H. J. Am. Chem. Soc. 2005, 127, 14988.
    • Compound 5c has been obtained in a 21% yield from 6-methyl-3,4-dihydropyran-2-one: Hird, A. W.; Hoveyda, A. H. J. Am. Chem. Soc. 2005, 127, 14988.
  • 22
    • 33846972161 scopus 로고    scopus 로고
    • Further studies will be pursued to determine the structure of the precursor affording 5.
    • Further studies will be pursued to determine the structure of the precursor affording 5.
  • 25
    • 33847805890 scopus 로고    scopus 로고
    • Weiler's method for the preparation of β-keto esters: Huckin, S. N.; Weiler, L. J. Am. Chem. Soc. 1974, 96, 1082.
    • Weiler's method for the preparation of β-keto esters: Huckin, S. N.; Weiler, L. J. Am. Chem. Soc. 1974, 96, 1082.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.