A novel, efficient, and environmentally compatible method for CF₃-substituted benzene production is reported. It sources a bio-based feedstock, employs tBuOK as a catalyst, and is solvent-free. This regioselective approach provides various trifluoromethyl benzenes in good to excellent yields, without any extra oxidant or special care. CO₂ and water are the only byproducts of this process, and the reaction conditions can scale up to gram quantities. The transformation involves an unprecedented tBuOK-catalyzed domino process, and features Michael addition/6π-electrocyclic ring opening/[1,5]-H shift/carba-6π-electrocyclic ring closure/decarboxylative aromatization reactions.

中文翻译：

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从生物基香豆酸甲酯向三氟甲基化苯的无溶剂碱催化多米诺反应

报道了一种用于CF ₃取代的苯生产的新颖，有效且与环境相容的方法。它以生物基原料为原料，使用t BuOK作为催化剂，并且不含溶剂。这种区域选择性的方法可以很好地提供各种三氟甲基苯，而无需任何额外的氧化剂或特别的照顾。CO ₂和水是该过程的唯一副产物，反应条件可以扩展到克量。该转化涉及前所未有的t BuOK催化的多米诺骨牌过程，并具有迈克尔加成/6π-电环开环/ [1,5] -H移位/carba-6π-电环闭环/脱羧芳构化反应。