反应详情

温度

75 °C

A mixture of 22.5 parts of 2,3-dihydro-1,4-benzodioxin-2-methanol 4-methylbenzenesulfonate (ester), 11.1 parts of 4-(2-methyl-1,3-dioxolan-2-yl)piperidine, 15 parts of sodium carbonate and 135 parts of N,N-dimethylacetamide was stirred overnight at 75° C. Water was added. The product was extracted with 4-methyl-2-pentanone. The extract was dried, filtered and evaporated, yielding 20.6 parts (100%) of 1-[(2,3-dihydro-1,4-benzodioxin-2-yl)methyl]-4-(2-methyl-1,3-dioxolan-2-yl)piperidine as an oily residue (intermediate 86).

1. extractionThe product was extracted with 4-methyl-2-pentanone
2. customThe extract was dried
3. filtrationfiltered
4. customevaporated