Synthesis of 2,3,4,5-Tetra(2-thienyl)cyclopentadienone Exhibiting Considerable Substituent Effects and Synthetic Utility
作者:Takeshi Kawase、Takeshi Ohsawa、Tetsuya Enomoto、Masaji Oda
DOI:10.1246/cl.1994.1333
日期:1994.7
2,3,4,5-Tetra(2-thienyl)cyclopentadienone and the related compounds, here first synthesized, show large bathochromic shift of visible absorptions and appreciably higher amphoteric redox properties than tetraphenylcyclopentadienone; 2-thienyl groups at 2,5-positions exert stronger substituent effects than those at 3,4-positions.
2,3,4,5-四(2-噻吩基)环戊二烯酮和相关化合物,在此首次合成,与四苯基环戊二烯酮相比,显示出较大的可见光吸收红移和明显更高的两性氧化还原特性;2,5-位的2-噻吩基比3,4-位具有更强的取代作用。