تفاعل #311857

معادلة التفاعل

calcium

5-methyl-thieno[3,2-d]isothiazole-3(2H)-one-1,1-dioxide

→

5-methyl-thieno[3,2-d]-isothiazole-3(2H)-one-1,1-dioxide calcium salt

المردود 130.3%

المذيبات

methanol

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةthe mixture was refluxed
2. 2
   أخرىthus obtained
3. 3
   أخرىThe resulting solution was evaporated
4. 4
   أخرىthe residue was recrystallized from a little ethanol/ether

الإجراء التجريبي

500 ml of methanol were added to 0.49 gm (12.3 millimols) of calcium, the mixture was refluxed, and 5.0 gm (24.6 millimols) of 5-methyl-thieno[3,2-d]isothiazole-3(2H)-one-1,1-dioxide were added to the suspension thus obtained. The resulting solution was evaporated, and the residue was recrystallized from a little ethanol/ether. 3.9 gm (71% of theory) of 5-methyl-thieno[3,2-d]-isothiazole-3(2H)-one-1,1-dioxide calcium salt were obtained.

المصدر