Bulletin of the Korean Chemical Society

  • 제16권10호
  • /
  • Pages.988-990
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  • 1995
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  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Photochemistry of Conjugated Poliynes : Photochemical Generation of Silacyclopropenes from 1-Aryl-4-(pentamethyldisilanyl)buta-1,3-diynes

  • 발행 : 1995.10.20
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초록

No fluorescence was observed from 1-aryl-4-(pentamethyldisilanyl)buta-1,3-diynes except 1-(1-naphthyl)-4-(pentamethyldisilanyl)buta-1,3-diyne. Irradiation of 1-aryl-4-(pentamethyldisilanyl)buta-1,3-diynes (1) with methanol gives photoaddition products in relatively low yields compared to arylethynyldisilanes which show dual fluorescence. Irradiation of 1 with acetone yields site specific and regioselective 1:1 photoadducts through silacyclopropene intermediates. The triplet excited state of the silacyclopropene reacts with acetone to give addition photoproducts and the triplet energy of the silacyclopropenes lies around 260-286 kJ/mol.

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참고문헌

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