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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 7, Number 4
BKCSDE 7(4)
April 20, 1986 

 
Title
Photoreaction of 1,6-Disubstituted-1,3,5-hexatriynes with Some Olefins
Author
Sang Chul Shim*, Tae Suk Lee
Keywords
Abstract
When the two conjugated poly-ynes, 1-phenyl-6-methyl- and 1,6-diphenyl-1,3,5-hexatriynes, were irradiated with UVA in deaerated 2,3-dimethyl-2-butene solution, 1:2 photoadducts, 1-(1'-phenylethynyl-2',2',3',3'-tetramethylcyclopr opyl)-2-(l",2",2",3",3"-pentamethylcyclopropyl) acetylene and 1-(1'-phenylethynyl-2',2',3',3'-tetramethylcyclopr opyl)-2-(1"-phenyl-2",2",3",3"-tetramethylcyclopro pyl) acetylene, were obtained, respectively. No photoadduct was formed with aerated 2,3-dimethyl-2-butene, or deaerated solutions of dimethyl fumarate, methyl crotonate, dimethyl maleate, and trans-1,2-dichloroethylene. The results suggest that the reactions proceed from the triplet state only with electron rich olefins such as 2,3-dimethyl-2-butene.
Page
304 - 308
Full Text
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