107686-57-7Relevant articles and documents
Process for producing 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylates
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, (2008/06/13)
Disclosed is a Wittig-type process for preparing 3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylates which comprises reacting 1,1,1-trichlorotrifluoroethane with hexamethylphosphorous triamide at a temperature in the range of about -80° C. to 10° C. in the presence of an inert aprotic solvent and a carbonaldehyde ester, and thereafter maintaining the reaction mixture at a temperature in the range of about 0° C. to 30° C. Also disclosed are the novel caronaldehyde ester (2-methyl[1,1'-biphenyl]-3-yl)methyl 2,2-dimethyl-3-formylcyclopropanecarboxylate and a precursor compound, (2-methyl[1,1'-biphenyl]-3-yl)methyl 2,2-dimethyl-3-(1,2-epoxy-2-methylpropyl)cyclopropanecarboxylate, and methods for producing them.