Reaction #68824

Reaction equation

4-(1,1-dioxo-1lambda6-thiomorpholin-4-yl)-piperidine-1-carboxylic acid

hydrochloric acid

→

4-piperidin-4-yl-thiomorpholine 1,1-dioxide

Solvents

dioxane

dichloromethane

Conditions

Workup

1. 1
   Otherevaporated to dryness
2. 2
   OtherThe product thus obtained

Procedure

0.786 g of tert-butyl ester of 4-(1,1-dioxo-1lambda6-thiomorpholin-4-yl)-piperidine-1-carboxylic acid is put in 5 ml of dichloromethane. 12.3 ml of 4M hydrochloric acid in dioxane is added at room temperature. The solution is stirred for 18 h and evaporated to dryness. The product thus obtained is returned to the basic state by means of tetraalkylammonium carbonate resin at a rate of 2 g per mmol. 0.555 g of 4-piperidin-4-yl-thiomorpholine 1,1-dioxide is obtained.

Source