1-chloro-3,3,3-trifluoro-prop-1-yne synthesis
- Product Name:1-chloro-3,3,3-trifluoro-prop-1-yne
- CAS Number:673-93-8
- Molecular formula:C3ClF3
- Molecular Weight:128.48
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Yield:673-93-8 12.5%
Reaction Conditions:
with tetrabutylammomium bromide;potassium hydroxide in water at 75; for 3.5 h;
Steps:
Example 3 Example in which a Phase Transfer Catalyst was Used [0053] A reaction was caused in substantially the same manner as in example 1 except that 4.7 g of tetrabutylammonium bromide was supplied as a phase transfer catalyst to a reactor accommodating the composition containing 1,1,2-trichloro-3,3,3-trifluoropropane. As a result, 224.7 g of composition containing 1,2-dichloro-3,3,3-trifluoropropene was obtained. [0054] The obtained composition containing 1,2-dichloro-3,3,3-trifluoropropene was analyzed by gas chromatography to find the following compound ratio. The compound contained cis-1,2-dichloro-3,3,3-trifluoropropene at a content of 67.5%, trans-1,2-dichloro-3,3,3-trifluoropropene at a content of 9.8%, and 1-chloro-3,3,3-trifluoropropyne at a content of 12.5%. The yield of 1,2-dichloro-3,3,3-trifluoropropene (total yield of the cis isomer and the trans isomer) was 54.1%.
References:
US2015/191406,2015,A1 Location in patent:Paragraph 0053; 0054
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