PROPADIENYLPHOSPHONIC DICHLORIDE synthesis
- Product Name:PROPADIENYLPHOSPHONIC DICHLORIDE
- CAS Number:17166-36-8
- Molecular formula:C3H3Cl2OP
- Molecular Weight:156.94
6175-54-8
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Yield:17166-36-8 84 %
Reaction Conditions:
with phosphorus trichloride in toluene at 85 - 95;Green chemistry;
Steps:
1.1 1: Preparation of compound (I)
Under mechanical stirring,Add 2.0L toluene to the 5L four-necked bottle,1174g phosphorus trichloride,The system was heated to 85°C under an oil bath,Control system temperature 85-95°CAnd drop propynyl alcohol 200g,The time for the dropwise addition is 45-60min. After the dropwise addition is completed, keep warm at 90°C for 4h, concentrate the toluene under reduced pressure at 50°C until no distillate is produced, and then use 200mL*2 times of toluene to bring phosphorus trichloride to obtain 468g of yellow oily liquid, namely propadiene Phosphorus oxychloride was directly used in the next reaction with a molar yield of 84%.
References:
CN115677771,2023,A Location in patent:Paragraph 0028; 0033; 0037-0038; 0049-0050
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