One-pot formation of a cyclobutane from the double photocycloaddition reactions of 1,4-diethynylbenzene to some o-quinones

Chemistry Letters

Volumn , Issue 5, 1999, Pages 395-396

  Kim, Sung Sik ^a   Kim, Ae Rhan ^a   Mah, Yoon Jung ^a   Shim, Sang Chul ^b  

^a Chonbuk National University   (South Korea)

^b Korea Advanced Institute of Science and Technology (KAIST)   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033472864     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1999.395     Document Type: Article

References (15)

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13. 3), δ 185.1 (CO), 133.0 (aromatic CH), 131.5 (aromatic C), 129.8 (aromatic CH), 125.4 (aromatic C), 82.3 (CCH), 81.3 (CCH), 67.5 (CH); Mass (EI), m/e 498 (M).
14. DEB 7 was found to add to p-quinones to give cyclobutenes or p-quinomethanes. For the photoaddition reactions of DEB to p-quinones, see a) S. S. Kim, A. R. Kim, K. J. O, D. J. Yoo, and S. C. Shim, Chem. Lett., 1995, 787.
15. b) S. S. Kim, K. J. O, and S. C. Shim, Bull. Korean Chem. Soc., 15(4), 270 (1994).