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Method for the simultaneous production of organic acid chlorides and chlorinated unsaturated hydrocarbons

阅读:11发布:2023-12-25

专利汇可以提供Method for the simultaneous production of organic acid chlorides and chlorinated unsaturated hydrocarbons专利检索,专利查询,专利分析的服务。并且A method for the simultaneous production of organic acid chloride and unsaturated hydrocarbons by heating in the presence of a Lewis acid as a catalyst, of a ketone having the general formula: R1R2R3C - CO - CHR4R5 with a trichloromethylated hydrocarbon having a double bond in the alpha position and represented by the general formula R - C Cl3 in which R1, R2, R3, R4 and R5 are identical or different from each other, are atoms of hydrogen, halogens F, Cl or Br, C1 to C3 alkyl groups which may possibly be substituted by atoms of halogens F, Cl and/or Br, or C6 or C10 aryl groups which may possibly be substituted by C1 to C3 alkyl groups and/or atoms of halogens F, Cl and/or Br; and R represents a C6 or C10 aromatic hydrocarbon residue which is unsubstituted, or which is substituted by at least a C1 to C3 alkyl group and/or at least a halogen atom F, Cl or Br; or an alkenyl group having the formula: XY CZ , in which X, Y and Z are identical to or different from each other and represent atoms of hydrogen, halogen F, Cl and/or Br, C1 to C3 alkyl groups or C1 to C3 alkyl groups which are substituted by at least a halogen atom F, Cl or Br.,下面是Method for the simultaneous production of organic acid chlorides and chlorinated unsaturated hydrocarbons专利的具体信息内容。

1. A METHOD FOR THE SIMULTANEOUS PRODUCTION OF ORGANIC ACID CHLORIDE AND CHLORINATED UNSATURATED HYDROCARBONS, CHARACTERIZED IN THAT A KETONE HAVING THE GENERAL FORMULA:
2. A method as claimed in claim 1 in which the halogens identified in claim 1 are selected from the group consisting of fluorine, chlorine and bromine.
3. A method as claimed in claim 1 in which R1, R2, R3, R4 and R5 are the same.
4. A method as claimed in claim 1 in which R1, R2 , R3, R4 and R5 are different.
5. A method as claimed in claim 1 in which the heating temperature is from 50* to 260*C.
6. A method as claimed in claim 1 in which the heating temperature is within the range of 130* to 160*C.
7. A method as claimed in claim 1 in which the Lewis acid is selected from the group consisting of Zn Cl2 and Fe Cl3.
8. A method as claimed in claim 1 in which the Lewis acid is employed in an amount within the range of 0.1 to 3% by weight with respect to the starting trichloromethylated derivative.
9. A method as claimed in claim 1 in which the molar ratio of the ketone to the trichloromethylated derivative is within the range of 0.1 to 4.
10. A method as claimed in claim 1 in which the molar ratio of ketone to the trichloromethylated derivative is within the range of 0.9 to 1.1.
11. A method as claimed in claim 1 in which the reaction is carried out at atmospheric pressure.
12. A method as claimed in claim 1 in which the reaction is carried out at a pressure within the range of 1 to 5 bars.
13. A method as claimed in claim 1 in which the ketone is slowly added to the mixture of the trichloromethylated derivative and the Lewis acid, while the reaction medium is stirred.
14. A method as claimed in claim 1 in which the chlorinated unsaturated hydrocarbon is distilled as it is formed in the reaction medium.
15. A method as claimed in claim 1 in which the organic acid chloride formed in the reaction medium is recovered by distillation at atmospheric or subatmospheric pressure.
16. A method as claimed in claim 1 in which the Lewis acid is selected from the group consisting of Al Cl3, Sb Cl5, Sb Cl3, Ti Cl4, B Cl3, Ga Cl3, Sn Cl4, Zr Cl4, B F3 or B Br3.
17. A method as claimed in claim 1 in which the Lewis acid is employed in an amount within the range of 0.5 to 1.5% by weight with respect to the starting trichloromethlated derivative.
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