[Br:1][C:2]([Br:12])=[CH:3][C@@H:4]1[C@H:6]([C:7](O)=[O:8])[C:5]1([CH3:11])[CH3:10].C(Cl)(=O)C([Cl:16])=O>C1(C)C=CC=CC=1>[Br:1][C:2]([Br:12])=[CH:3][C@@H:4]1[C@H:6]([C:7]([Cl:16])=[O:8])[C:5]1([CH3:11])[CH3:10]In a manner similar to Example 13A, the reaction of 13.0 g (0.0436 mole) of (±)-cis-3-(2,2-dibromoethenyl)-2,2-dimethylcyclopropanecarboxylic acid, 50 ml of toluene, and 11.1 g (0.0873 mole) of oxalyl chloride gave 7.0 g of (±)-cis-3-(2,2-dibromoethenyl)-2,2-dimethylcyclopropanecarbonyl chloride. The nmr spectrum was consistent with the proposed structure.
読み込み中…