1-Chloro-3,3,3-trifluoropropene
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| Preferred IUPAC name
1-Chloro-3,3,3-trifluoroprop-1-ene | |
| Other names
1-Chloro-3,3,3-trifluoropropene
HCFO-1233zd HCFC-1233zd r-1233zd Solstice zd (Honeywell brand name) | |
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.215.615 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C3H2ClF3 | |
| Molar mass | 130.49 g·mol−1 |
| Appearance | Colorless liquid |
| Boiling point | 39.6 °C (Z) 18.5 °C (E) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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1-Chloro-3,3,3-trifluoropropene (HFO-1233zd) is the unsaturated chlorofluorocarbon with the formula HClC=C(H)CF3. The compound exists as E- (trans-) and Z- (cis-) isomers. The cis- isomer of this colorless gas is of interest as a more environmentally friendly (lower GWP; global warming potential) refrigerant in air conditioners(cis-isomer) or solvent(trans-isomer).[1] The trans-isomer is of interest as a more environmentally friendly (lower GWP; global warming potential) solvent.[2]
Production
It can be prepared by fluorination and dehydrohalogenation/dehydrochlorination reactions starting with 1,1,1,3,3-pentachloropropane[3] or 1,1,3,3-tetrachloropropane using the below steps:[4]
- In a liquid phase reactor, HFO-240fa (or 1,1,3,3-tetrachloropropene and derivatives such as 1,3,3,3-tetrachloropropene) are converted to HF in the presence of a catalyst forming a mixture of 245fa, 244fa, 1234ze, and 1233zd;
- Removal of HCl and HF.
- In a liquid or gas phase reactor, the organic mixture is reacted with HCl in the presence of a catalyst to convert unsaturated olefins to alkanes.
- Isolating and purifying the HFO-245fa product
- HFO-243fa and HFO-244fa are dehydrochlorinated with a caustic solution in the liquid phase or with a catalyst in the vapor phase to form HFO-1233zd and trans-1234ze(E-isomer).
- Isolation and purifying the HFO-1233zd product into its isomers.
References
- ^ Cheryl Hogue (2011). "Replacing the Replacements". Chemical & Engineering News. 89 (49): 31–32. doi:10.1021/cen-v089n049.p031. Archived from the original on 2020-09-23.
- ^ JP6382374B2, ウォン,ハイユー; マーケル,ダニエル・シー & ポクロフスキ,コンスタンティン・エイ et al., "1,1,1,3,3−ペンタフルオロプロパン、トランス−1−クロロ−3,3,3−トリフルオロプロペン、及びトランス−1,3,3,3−テトラフルオロプロペンを共製造するための統合方法", issued 2018-08-29
- ^ Tung, Hseuh Sung; Ulrich, Kevin D.; Merkel, Daniel C. "Low-temperature catalytic fluorination process for the manufacture of 1-chloro-3,3,3-trifluoropropene from 1,1,1,3,3-pentachloropropane and hydrogen fluoride" U.S. (2005), US 6844475 B2 20050118 to Honeywell International Business Machines.
- ^ JP6382374B2, ウォン,ハイユー; マーケル,ダニエル・シー & ポクロフスキ,コンスタンティン・エイ et al., "1,1,1,3,3−ペンタフルオロプロパン、トランス−1−クロロ−3,3,3−トリフルオロプロペン、及びトランス−1,3,3,3−テトラフルオロプロペンを共製造するための統合方法", issued 2018-08-29