An o-quinone methide (o-QM) competent as a catalyst for the dehydridative oxidation of benzylic alcohols was developed. The introduction of an overcrowded olefinic component into the o-QM induced structural distortion, beneficial for imparting triarylmethylium character and regenerability. The zwitterionc resonance form of the o-QM, generated via photoexcitation and subsequent relaxation, exerted the dehydridation activity. Density functional theory calculations were conducted to gain insights into the operative catalytic process.

中文翻译：

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具有过度拥挤的烯烃核的邻醌甲基化物作为三芳基甲基鎓盐的催化活性替代物，用于在有氧光辐照条件下对苯甲醇进行脱水氧化

开发了一种邻醌甲基化物 ( o -QM)，可作为苯甲醇脱水氧化的催化剂。将过度拥挤的烯烃组分引入o- QM 会导致结构扭曲，有利于赋予三芳基甲基鎓特性和可再生性。通过光激发和随后的弛豫产生的o- QM的两性离子共振形式发挥了脱水活性。进行密度泛函理论计算以深入了解操作催化过程。