反应详情

To a cooled (ice-bath) suspension of 41.7 parts of 2-naphthalenesulfonyl chloride in 174 parts of methylbenzene were added dropwise 20.0 parts of 1,1,1-trifluoro-2-propanol. After stirring for 1 hour, there was added dropwise a mixture of 9.6 parts of a dispersion of sodium hydride in mineral oil (50%) and some methylbenzene while cooling on ice. Subsequently, the whole was diluted dropwise with water. The organic layer was separated, dried, filtered and evaporated, yielding 53.2 parts (99.9%) of (2,2,2-trifluoro-1-methylethyl) 2-naphthalenesulfonate (interm. 28).

1. temperatureTo a cooled
2. additionthere was added dropwise
3. customThe organic layer was separated
4. customdried
5. filtrationfiltered
6. customevaporated