2-乙烯氧基四氢吡喃

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 0.75 mol of the compound obtained in Step 1 in 200 ml of ether there are added 1.5 g of rhodium acetate and then, over 6 hours, a solution of 93 g of ethyl diazoacetate in 50 ml of ether. After stirring at ambient temperature for 16 hours, the reaction mixture is filtered and is then distilled at 50-90° C. and 0.5 torr. The residue obtained is redistilled at 80-84° C. and 0.2 torr, allowing the expected product to be isolated. the reaction mixture is filtered is then distilled at 50-90° C. The residue obtained is redistilled at 80-84° C. to be isolated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 1.52 mol of 2-(2-chloroethoxy)-tetrahydro-2H-pyran, 93 g of sodium hydroxide reduced to a powder and 25 g of tetrabutylammonium monosulphate is stirred for 1 hour and then distilled at 50° C. and 20 torr. The distillate is then dried over sodium sulphate, allowing the expected product to be isolated. distilled at 50° C. The distillate is then dried over sodium sulphate to be isolated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 1.52 mol of 2-(2-chloroethoxy)-tetrahydro-2H-pyran, 93 g of sodium hydroxide reduced to a powder and 25 g of tetrabutylammonium monosulphate is stirred for 1 hour and then distilled at 50° C. and 20 torr. The distillate is then dried over sodium sulphate, allowing the expected product to be isolated. distilled at 50° C. The distillate is then dried over sodium sulphate to be isolated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 0.75 mol of the compound obtained in Step 1 in 200 ml of ether there are added 1.5 g of rhodium acetate and then, over 6 hours, a solution of 93 g of ethyl diazoacetate in 50 ml of ether. After stirring at ambient temperature for 16 hours, the reaction mixture is filtered and is then distilled at 50-90° C. and 0.5 torr. The residue obtained is redistilled at 80-84° C. and 0.2 torr, allowing the expected product to be isolated. the reaction mixture is filtered is then distilled at 50-90° C. The residue obtained is redistilled at 80-84° C. to be isolated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 1.52 mol of 2-(2-chloroethoxy)-tetrahydro-2H-pyran, 93 g of sodium hydroxide reduced to a powder and 25 g of tetrabutylammonium monosulphate is stirred for 1 hour and then distilled at 50° C. and 20 torr. The distillate is then dried over sodium sulphate, allowing the expected product to be isolated. distilled at 50° C. The distillate is then dried over sodium sulphate to be isolated