Fluorodecarboxylation, rearrangement and cyclisation: the influence of structure and environment on the reactions of carboxylic acids with xenon difluoride
作者:Christopher A. Ramsden、Maxine M. Shaw
DOI:10.1016/j.tetlet.2009.02.090
日期:2009.7
The reactions of structurally diverse carboxylic acids with XeF2 in both CH2Cl2/Pyrex® and CH2Cl2/PTFE have been studied. Pyrex® appears to be a very effective heterogeneous catalyst for an electrophilic mode of reaction of polarised XeF2, leading to rearrangement, cyclisation and cationic products. In CH2Cl2/PTFE, fluorodecarboxylation is the main mode of reaction, in accordance with previous studies
的结构不同的羧酸与氟化氙的反应2中两个CH 2氯2 /的Pyrex ®和CH 2氯2 / PTFE进行了研究。派热克斯®似乎是极化的XeF的反应的亲电子模式的非常有效的多相催化剂2,导致重排,环化和阳离子产品。根据先前的研究,在CH 2 Cl 2 / PTFE中,氟脱羧是主要的反应方式,可能通过未极化的XeF 2的SET反应发生。