ethyl oxolane-2-carboxylate

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A flask was charged with 13.6 g of magnesium and 300 ml of tetrahydrofuran, to which 60.3 g of 1,4-dibromobutane was added dropwise at 50° C. After the completion of dropwise addition, the solution was stirred at 60° C. for one hour. To the solution below 40° C., 31.0 g of ethyl tetrahydrofurancarboxylate was added dropwise. The solution was stirred at room temperature for one hour, after which an aqueous solution of ammonium chloride was added for hydrolysis. Ordinary post-treatment yielded 30.2 g of 1-(2-tetrahydrofuranyl)cyclopentanol. was added dropwise at 50° C After the completion of dropwise addition The solution was stirred at room temperature for one hour

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A flask was charged with 13.6 g of magnesium and 300 ml of tetrahydrofuran, to which 60.3 g of 1,4-dibromobutane was added dropwise at 50° C. After the completion of dropwise addition, the solution was stirred at 60° C. for one hour. To the solution below 40° C., 31.0 g of ethyl tetrahydrofurancarboxylate was added dropwise. The solution was stirred at room temperature for one hour, after which an aqueous solution of ammonium chloride was added for hydrolysis. Ordinary post-treatment yielded 30.2 g of 1-(2-tetrahydrofuranyl)cyclopentanol. was added dropwise at 50° C After the completion of dropwise addition The solution was stirred at room temperature for one hour

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A flask was charged with 13.6 g of magnesium and 300 ml of tetrahydrofuran, to which 60.3 g of 1,4-dibromobutane was added dropwise at 50° C. After the completion of dropwise addition, the solution was stirred at 60° C. for one hour. To the solution below 40° C., 31.0 g of ethyl tetrahydrofurancarboxylate was added dropwise. The solution was stirred at room temperature for one hour, after which an aqueous solution of ammonium chloride was added for hydrolysis. Ordinary post-treatment yielded 30.2 g of 1-(2-tetrahydrofuranyl)cyclopentanol. was added dropwise at 50° C After the completion of dropwise addition The solution was stirred at room temperature for one hour