反应 #9814

反应方程式

2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxide

H2SO4

nitric acid

→

title compound

收率 53.7%

6-Nitro-2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxide

收率 53.7%

溶剂

water

反应条件

后处理

1. 1
   其他the product isolated by filtration

实验过程

2.554 g 66% H2SO4 and 1.454 g 65% nitric acid were mixed at 0° C. 2.395 g 2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxide were added in portions at 0° C. After stirring for 30 min. the mixture was diluted with water and the product isolated by filtration. Chromatography on silica yielded 1.6 g of the title compound and 0.37 g 0.58 g of the 8-nitro isomer.

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