摘要
通过茚和芳香醛在相转移催化剂三乙基苄基氯化铵存在下发生缩合反应,合成了6个标题化合物,测定了它们在17种溶剂中的紫外光谱,在极性和非极性溶剂中,其紫外光谱的最大吸收峰频率与Hamett亲电取代常数之间呈良好的线性关系。
Six benzofulvenes are synthesized by the condensation of indene with aromatic aldehydes in alkaline solution in the presence of phase transfer catalyst. Their UV spectra in seventeen solvens are measured. The linear relationships between■_(max)^(UV) and |σ_p^+| are abtained.
关键词
苯并富烯
紫外光谱
取代基效应
催化
合成
Benzofulvene, Phase transfer catalysis, UV spectra, Substituent effect
