Fluorine-containing polyfunctional silicon compound and method for producing fluorine-containing polyfunctional silicon compound

A method for producing a fluorine-containing polyfunctional silicon compound represented by the following general formula (I), in which an (n+m)-valent fluorine-containing alcohol represented by the following general formula (I) and an isocyanate represented by the following general formula (VII) are reacted under a basic condition:

• wherein Q represents an (n+m)-valent organic group having at least one fluorine atom;
• k represents 0 or 1;
• each of Rf1 and Rf2 independently represents a fluorine atom, a hydrogen atom or an alkyl group having at least one fluorine atom;
• R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group;
• R2 represents a hydrogen atom or a hydrocarbon group;
• n represents an integer of 2 or more;
• m represents an integer of 0 or more;
• a represents an integer of from 1 to 6;
• and b represents an integer of from 1 to 3,
• and wherein the (n+m)-valent fluorine-containing alcohol represented by the formula (I) is selected from the group consisting of the compounds (1-1) to (1-21) as follows:

A method for producing of a fluorine-containing polyfunctional silicon compound represented by the following general formula (II), in which a fluorine-containing alcohol represented by the following general formula (II) and an isocyanate represented by the following general formula (VII) are reacted under a basic condition:

• wherein R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group;
• R2 represents a hydrogen atom or a hydrocarbon group;
• a represents an integer of from 1 to 6;
• b represents an integer of from 1 to 3;
• x represents an integer of from 1 to 200;
• L represents a divalent organic group;
• Rf11 represents a perfluoroalkylene group;
• each of Rf12 and Rf13 independently represents a fluorine atom, a perfluoroalkyl group or a perfluoroalkoxy group;
• and at least two of Rf11, Rf12 and Rf13 may be bonded to each other to form one or more rings.

A method for producing of a fluorine-containing polyfunctional silicon compound represented by the following general formula (III), wherein a fluorine-containing alcohol represented by the following general formula (III) and an isocyanate represented by the following general formula (VII) are reacted under a basic condition:

• wherein R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group;
• R2 represents a hydrogen atom or a hydrocarbon group;
• a represents an integer of from 1 to 6;
• b represents an integer of from 1 to 3;
• x represents an integer of from 1 to 200;
• L represents a divalent organic group;
• and Rf14 represents a tetravalent perfluoroalkylene group.

A method for producing of a fluorine-containing polyfunctional silicon compound represented by the following general formula (IV), wherein a fluorine-containing alcohol represented by the following general formula (Iv) and an isocyanate represented by the following general formula (VII) are reacted under a basic condition:

• wherein R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group;
• R2 represents a hydrogen atom or a hydrocarbon group;
• a represents an integer of from 1 to 6;
• b represents an integer of from 1 to 3;
• x represents an integer of from 1 to 200;
• and L represents a divalent organic group.

A fluorine-containing polyfunctional silicon compound represented by the following general formula (I):

• wherein Q represents an (n+m)-valent organic group having at least one fluorine atom;
• each of Rf1 and Rf2 independently represents a fluorine atom, a hydrogen atom or an alkyl group having at least one fluorine atom;
• R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group;
• R2 represents a hydrogen atom or a hydrocarbon group;
• k represents 0 or 1;
• n represents an integer of 2 or more;
• m represents an integer of 1 or more;
• a represents an integer of from 1 to 6;
• and b represents an integer of from 1 to 3.