350-44-7Relevant academic research and scientific papers
Development of a Scalable Synthesis of trans-4-Fluorocyclohexylamine via Directed Hydrogenation
Leung, Joyce C.,Nguyen, Thach T.,Krawiec, Mariusz,Gao, Donghong A.,Reeves, Jonathan T.
, p. 632 - 641 (2020/12/22)
Herein, a scalable and practical process to prepare trans-4-fluorocyclohexylamine hydrochloride (1a) is described. By exploitation of the embedded gem-difluoride motif in the commercially available 4,4-difluorocyclohexanecarboxylic acid, a derived orthoester-masked acid underwent dehydrofluorination to provide the requisite vinyl fluoride for a directed hydrogenation event, enabling selective access to the trans-configuration of 1a.
A 4, 4 - difluoro-cyclohexyl preparation of formic acid method
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Paragraph 0029; 0030; 0031; 0032; 0033; 0034, (2017/08/25)
The invention relates to a preparation and purification process of a compound 4,4-difluorocyclohexanecarboxylic acid represented in the formula (I). The preparation and purification process is characterized in that a method comprises steps represented in an equation shown in the specification. The processing method has the characteristics of easiness in operation, facilitation of industrial production of 4,4-difluorocyclohexanecarboxylic acid and environmental protection.
