四氟丁二酸二甲酯

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd for C8H10F4O5 :C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)-1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd for C8H10F4O5 : C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)-1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd. for C8H10F4O5 : C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd for C8H10F4O5 :C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)-1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)-1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd for C8H10F4O5 : C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)-1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd. for C8H10F4O5 : C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled

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

实验步骤: A mixture of 43.6 g (0.20 mol) of dimethyl tetrafluorosuccinate, 16.1 g (0.20 mol) of 2-chloroethanol, and 100 mL of DMSO was stirred and maintained at 25°-35° while 9.6 g (0.20 mol) of 50% NaH in mineral oil were added portionwise. The resulting mixture was stirred overnight, and then poured into 500 mL of cold water. Ether (300 mL) was added, and the resulting mixture was shaken. After mixture separated into layers, the ether layer was separated, washed with 100 mL of water, dried over CaSO4, filtered and distilled to give 23.1 g (44%) of 2-methoxy-2-(2-methoxycarbonyltetrafluoroethyl)1,3-dioxolane, b.p. 72°-72.5° at 13 Pa (0.1 mm). IR (neat) and NMR (CCl4) spectra of the product were consistent with the assigned structure. Anal.: Calcd for C8H10F4O5 :C, 36.65; H, 3.85; F, 28.99. Found: C, 36.45; H, 3.95; F, 28.70. were added portionwise The resulting mixture was stirred overnight the resulting mixture was shaken After mixture separated into layers the ether layer was separated washed with 100 mL of water dried over CaSO4 filtered distilled