3,3-dichloro-1,1,1,2,2-pentafluoropropane

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The process for producing tetrafluoropropenes of the present invention comprises contacting a raw material composition comprising 1-chloro-2,3,3,3-tetrafluoropropane (HCFC-244eb) and dichloropentafluoropropane including 1,1-dichloro-2,2,3,3,3-pentafluoropropane (HCFC-225ca) and at least one of its isomers, with an alkali aqueous solution in the presence of a phase-transfer catalyst, to produce 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya) from the 1,1-dichloro-2,2,3,3,3-pentafluoropropane (HCFC-225ca), and to produce 2,3,3,3-tetrafluoropropene 1234yf) from the 1-chloro-2,3,3,3-tetrafluoropropane (HCFC-244eb).

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The process for producing tetrafluoropropenes of the present invention comprises contacting a raw material composition comprising 1-chloro-2,3,3,3-tetrafluoropropane (HCFC-244eb) and dichloropentafluoropropane including 1,1-dichloro-2,2,3,3,3-pentafluoropropane (HCFC-225ca) and at least one of its isomers, with an alkali aqueous solution in the presence of a phase-transfer catalyst, to produce 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya) from the 1,1-dichloro-2,2,3,3,3-pentafluoropropane (HCFC-225ca), and to produce 2,3,3,3-tetrafluoropropene 1234yf) from the 1-chloro-2,3,3,3-tetrafluoropropane (HCFC-244eb).

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Until HCFC-225ca becomes available in commercial quantities, HCFC-225ca may be prepared by a standard and well-known organic synthesis technique. For example, to prepare 1,1-dichloro-2,2,3,3,3-pentafluoropropane, 2,2,3,3,3-pentafluoro-1-propanol and p-toluenesulfonate chloride are reacted together to form 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate. Then, N-methylpyrrolidone, lithium chloride, and the 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate are reacted together to form 1-chloro-2,2,3,3,3-pentafluoropropane. Chlorine and the 1-chloro-2,2,3,3,3-pentafluoropropane are then reacted together to form 1,1-dichloro-2,2,3,3,3-pentafluoropropane. A detailed synthesis is set forth below.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Until HCFC-225ca becomes available in commercial quantities, HCFC-225ca may be prepared by a standard and well-known organic synthesis technique. For example, to prepare 1,1-dichloro-2,2,3,3,3-pentafluoropropane, 2,2,3,3,3-pentafluoro-1-propanol and p-toluenesulfonate chloride are reacted together to form 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate. Then, N-methylpyrrolidone, lithium chloride, and the 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate are reacted together to form 1-chloro-2,2,3,3,3-pentafluoropropane. Chlorine and the 1-chloro-2,2,3,3,3-pentafluoropropane are then reacted together to form 1,1-dichloro-2,2,3,3,3-pentafluoropropane. A detailed synthesis is set forth below. may be prepared by a standard and well-known organic synthesis technique are reacted together

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: As a mixture of dichloropentafluoropropane (HCFC-225) isomers, ASAHIKLIN AK-225 (tradename, manufactured by Asahi Glass Company, Limited, mixture of HCFC-225 isomers comprising HCFC-225ca (1,1-dichloro-2,2,3,3,3-pentafluoropropane, CHCl2CF2CF3: 48 mol %) and HCFC-225cb (1,3-dichloro-1,2,2,3,3-pentafluoropropane (CHClFCF2CClF2: 52 mol %)) was used as the reaction raw material, and 1,1-dichloro-2,3,3,3-tetrafluoropropene (CF3CF═CCl2, CFO-1214ya) was produced by the following process. was used as the reaction raw material

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: These solvents are readily prepared from commercially available materials by standard and well-known organic syntheses techniques. For example, to prepare 1,1-dichloro-2,2,3,3,3-pentafluoropropane, 2,2,3,3,3-pentafluoro-1-propanol and p-toluenesulfonate chloride are reacted together to form 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate. Then, N-methylpyrrolidone, lithium chloride, and the 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate are reacted together to form 1-chloro-2,2,3,3,3-pentafluoropropane. Chlorine and the 1-chloro-2,2,3,3,3-pentafluoropropane are then reacted together to form 1,1-dichloro-2,2,3,3,3-pentafluoropropane.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: These solvents are readily prepared from commercially available materials by standard and well-known organic syntheses techniques. For example, to prepare 1,1-dichloro-2,2,3,3,3-pentafluoropropane, 2,2,3,3,3-pentafluoro-1-propanol and p-toluenesulfonate chloride are reacted together to form 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate. Then, N-methylpyrrolidone, lithium chloride, and the 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate are reacted together to form 1-chloro-2,2,3,3,3-pentafluoropropane. Chlorine and the 1-chloro-2,2,3,3,3-pentafluoropropane are then reacted together to form 1,1-dichloro-2,2,3,3,3-pentafluoropropane. These solvents are readily prepared from commercially available materials by standard and well-known organic syntheses techniques are reacted together

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Until HCFC-225ca becomes available in commercial quantities, HCFC-225ca may be prepared by a standard and well-known organic synthesis technique. For example, to prepare 1,1-dichloro-2,2,3,3,3-pentafluoropropane, 2,2,3,3,3-pentafluoro-1-propanol and p-toluenesulfonate chloride are reacted together to form 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate. Then, N-methylpyrrolidone, lithium chloride, and the 2,2,3,3,3-pentafluoropropyl-p-toluenesulfonate are reacted together to form 1-chloro-2,2,3,3,3-pentafluoropropane. Chlorine and the 1-chloro-2,2,3,3,3-pentafluoropropane are then reacted together to form 1,1-dichloro-2,2,3,3,3-pentafluoropropane. A detailed synthesis is set forth below.