Photoswitchable enediynes: use of cyclopropenone as photocleavable masking group for the enediyne triple bond
作者:Andrei Poloukhtine、Vladimir V. Popik
DOI:10.1039/b414951c
日期:——
Cyclopropenone 1, 2,3-benzobicyclo[8.1.0]undec-1(10)-en-4-yn-11-one, is a thermally stable compound showing no signs of decomposition after heating at 84 °C for 7 d, UV irradiation of which results in an efficient (Φ300
= 0.45) and quantitative formation of benzannelated enediyne 2, which undergoes Bergman cyclization at the above temperature.
环丙烯酮 1,即 2,3-苯并双环[8.1.0]十一碳-1(10)-烯-4-炔-11-酮,是一种热稳定性化合物,在 84 °C 下加热 7 d 后无分解迹象,紫外线照射后可高效(Φ300 = 0.45)定量地形成苯通道化烯二炔 2,后者在上述温度下发生伯格曼环化反应。