potassium carbonate in isobutyramide T=30 - 135°C; 20.5 h;

1: With sodium tert-pentoxide in 1,1-dimethylpropan-1-ol T=85 - 112°C; 9 h; 2: With methanol; water in 1,1-dimethylpropan-1-ol T=20 - 50°C; 4.3 h;

1: With sodium tert-pentoxide T=20 - 105°C; 7 h; 2: With methanol; water T=20 - 83°C; 4.75 - 5.25 h; Product distribution / selectivity;