Direct one-step synthesis of CF3-I
AssigneeHoneywell International Inc.
InventorsSudip Mukhopadhyay, Hsueh Sung Tung
Life of this patent
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Abstract
The present invention provides a process for the preparation of trifluoromethyl iodide. The process includes the step of: contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula: Z-I wherein W is selected from CF3, hydrogen and bromine; Z is selected from hydrogen, iodine and chlorine. The step of contacting is carried out, optionally in the presence of a catalyst and further optionally in the presence of air, at a temperature, pressure and for a length of time sufficient to produce the trifluoromethyl iodide.
Claims26
A process for the preparation of trifluoromethyl iodide, comprising the step of:
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W is selected from the group consisting of CF3, hydrogen and bromine;
- Z is selected from the group consisting of hydrogen, and chlorine;
- and wherein said step of contacting is carried out, optionally in the presence of a catalyst and further optionally in the presence of air, at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
A process for the preparation of trifluoromethyl iodide, comprising the step of:
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W is CF3 and Z is iodine;
- and wherein said step of contacting is carried out, optionally in the presence of a catalyst and further optionally in the presence of air, at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
A process for the preparation of trifluoromethyl iodide, comprising the step of:
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W is hydrogen;
- Z is iodine;
- and wherein said step of contacting is carried out in the absence of a catalyst and absence of air, at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
A process for the preparation of trifluoromethyl iodide, comprising the step of:
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W Is hydrogen;
- Z is iodine;
- and wherein said stop of contacting is carried out in the presence of one or more catalysts selected from the group consisting of iodide, nitrate, oxide, bromide, carbonate, chloride, acetate, acetylacetonate salts of Cu (II), Hg (II), Pt (II), Pd (II), Co (III), Mn (III), Rh (III), Ni (II), V (IV), TI (III), and Ge (III), and at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
A process for the preparation of trifluoromethyl iodide, comprising the step of:
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W is bromine;
- Z is iodine;
- and wherein said step of contacting is carried out in the absence of a catalyst and in the presence or absence of air, at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
A process for the preparation of trifluoromethyl iodide, comprising the step of
- contacting in a reactor a compound represented by the formula:
- CF3—W
- and a compound represented by the formula:
- Z-I
- wherein W is bromine;
- Z is iodine;
- and wherein said step of contacting is carried out in the presence of one or more catalysts selected from the group consisting of iodide, nitrate, oxide, bromide, carbonate, chloride, acetate, acetylacetonate salts of Cu (II), Hg (II), Pt (II), Pd (II), Co (III), Mn (III), Rh (III), Ni (II), V (IV), TI (III), and Ge (III), and at a temperature, pressure and for a length of time sufficient to produce said trifluoromethyl iodide.
Dependencies are inferred from the claim text.