1: 2,3,5,6-tetrafluoro-4-(methoxymethyl)benzyl alcohol With zirconium tetra-n-propoxide in propan-1-ol; xylene T=143 - 145°C; 2: 3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid With 2,6-di-tert-butyl-4-methyl-phenol in propan-1-ol; xylene T=145 - 147°C; 8 h; Product distribution / selectivity;

in anhydrous xylene

in anhydrous xylene

pyridine in tetrahydrofuran

in tetrahydrofuran T=0 - 20°C; 8 h;

in propan-1-ol; xylene T=145 - 147°C; 8 h; Product distribution / selectivity;