Z-(1R,S)-cis-2,2-dimethyl-3-(2,2-chloro-3,3,3-trifluoro-1-propenyl)cyclopropanecarboxylic acid → alpha-Fluoro-3-phenoxybenzyl 3-(2-chloro-2-trifluoromethylvinyl)2,2-dimethylcyclopropanecarboxylate

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Reaction Steps

This compound was prepared from 3-(2-chloro-2-trifluoromethylvinyl)-2,2-dimethylcyclopropanecarboxylic acid and α-fluoro-3-phenoxybenzyl bromide following the procedure described in Example 2 Method B. The product, a colourless oil, was characterised by pmr spectroscopy. Chemical shift δppm (solvent CDCl3): 1.26 (6H, m, C(CH3)2); 1.72-2.44 (2H, m, cyclopropyl protons); 5.80 and 6.18 (1H, 2xd, vinyl proton); 7.20 (1H, d, J=56 Hz, CHF) and about 7.13 (9H, m, aromatic protons).

Provenance & Evidence