Fluoroakane is best prepared by???
Answers
Answer
1. A process for the preparation of fluoroalkanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting a fluoroalkane, having at least one hydrogen atom and at least one fluorine atom attached to a terminal carbon atom adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of a metal capable of 80 existing in more than one positive valence state.
2. A process for the preparation of 1,1,1-trifluoroalkanes which comprises reacting a 1,1-difluoroalkane, wherein the terminal carbon atom containing the two fluorine atoms is adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of a metal capable of existing in more than one positive valence state.
3. A process for the preparation of fluoroalkanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting a fluoroalkane, containing from 2 to 4 carbon atoms and having at least one hydrogen atom and at least one fluorine atom attached to a terminal carbon atom adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of a metal capable of existing in more than one positive valence state. 5. A process for the preparation of fluoroethanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting 1-fluoroethane with hydrogen fluoride in the presence of a higher oxide of a metal capable of existing in more than one positive valence state.
4. A process for the preparation of a metal capable of existing in more than one positive valence state.
5. A process as set forth in claim 1 in which the reaction is carried out at a temperature from 300 to 200° C.
6. A process as set forth in claim 1 in which the reaction is carried out at a temperature from 400 to 150° C.
7. A process for the preparation of fluoroalkanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting a fluoroalkane, having at least one hydrogen atom and at least one fluorine atom attached to a terminal carbon atom adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of lead.
8. A process for the preparation of fluoroalkanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting a fluoroalkane, having at least one hydrogen atom and at least one fluorine atom attached to a terminal carbon atom adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of manganese.
9. A process for the preparation of fluoroalkanes having at least two fluorine atoms attached to a terminal carbon atom, which comprises reacting a fluoroalkane, having at least one hydrogen atom and at least one fluorine atom attached to a terminal carbon atom adjacent to a carbon atom having at least one hydrogen atom attached thereto, with hydrogen fluoride in the presence of a higher oxide of cobalt. 13. A process for the preparation of 1,1-difluoroethane which comprises reacting 1-fluoroethane with hydrogen fluoride in the presence of a higher oxide of a metal capable of existing in more than one positive valence state.
10. A process for the preparation of 1,1,1-trifluoroethane which comprises reacting 1,1-difluoroethane with substantially anhydrous hydrogen fluoride at a temperature of 400 to 150° C. in the presence of lead dioxide.