Photoswitchable enediynes: use of cyclopropenone as photocleavable masking group for the enediyne triple bond |
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| Authors: | Poloukhtine Andrei Popik Vladimir V |
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| Institution: | Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, USA. |
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| Abstract: | Cyclopropenone , 2,3-benzobicyclo8.1.0]undec-1(10)-en-4-yn-11-one, is a thermally stable compound showing no signs of decomposition after heating at 84 degrees C for 7 d, UV irradiation of which results in an efficient (Phi(300)= 0.45) and quantitative formation of benzannelated enediyne , which undergoes Bergman cyclization at the above temperature. |
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