反应详情

To a stirred mixture of 76 parts of 4-fluoro-2-nitrobenzoic acid and 225 parts of benzene are added dropwise 71 parts of sulfinyl chloride. Upon completion, stirring is continued first for 5 hours at reflux and further overnight at room temperatue. The reaction mixture is evaporated. The residue is taken up twice in benzene and the latter is evaporated each time, yielding 85 parts of 4-fluoro-2-nitrobenzoyl chloride as a residue.

1. temperatureat reflux and further overnight at room temperatue
2. customThe reaction mixture is evaporated
3. customthe latter is evaporated each time