Silsesquioxane derivative having functional group

Abstract

A conventional silsesquioxane derivative has the problems that the functional groups are restricted and the chemical structure is not readily controlled and that it is expensive. The present inventors have developed a process for producing a silsesquioxane derivative at a high yield by a simple process in order to solve such problems. The novel silsesquioxane derivative according to the present invention is controlled in a structure thereof and has a functional group, which is excellent in reactivity with a target compound, to be modified. The present invention relates to a production process for a silsesquioxane derivative represented by Formula (2), characterized by using a silicon compound represented by Formula (1). In Formula (1) and Formula (2), R is a group selected from hydrogen, alkyl, aryl and arylalkyl; M is a monovalent alkaline metal atom; at least one of Y is a group represented by Formula (3), and the remainder of Y is hydrogen; R 1 and R 2 in Formula (3) represent the same group as defined for R; and Z is a functional group or a group having a functional group.

1 - 19 . (canceled)  
   
   
       20 . A silsesquioxane derivative represented by formula (2):  
     
       
         
         
             
             
         
       
     
     wherein all of R's are the same group selected from alkyl in which the number of carbon atoms is 1 to 20, at least one hydrogen is replaced by fluorine and one —CH 2 — may be replaced by —O—, phenyl in which at least one hydrogen on the benzene ring is replaced by fluorine, and phenylalkyl in which at least one hydrogen on the benzene ring is replaced by fluorine and in the alkylene group thereof, one —CH 2 — may be replaced by —O—; each Y is a group selected independently from groups represented by Formula (3) and hydrogen; and at least one of Y is a group selected from the groups represented by Formula (3):  
     
       
         
         
             
             
         
       
     
     wherein R 1  and R 2  represent independently alkyl having 1 to 10 carbon atoms, or phenyl; Z is hydrogen, alkenyl, or a group having any of —OH, alkenyl, —COOH, —COO—, —OCO—, 2-oxapropanedioyl, polyalkyleneoxy, acryloyloxy, methacryloyloxy, oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, oxetanylene, —NH 2 , —CN and —SH; provided that Z is not any of a group having a dithiocarbamate group, a group having haloalkylphenyl and a group having an α-haloester group.  
   
   
       21 . The silsesquioxane derivative according to  claim 20 , wherein all of R's are the same group selected from alkyl in which the number of carbon atoms is 1 to 10, at least one hydrogen is replaced by fluorine and one —CH 2 — may be replaced by —O—, phenyl in which at least one hydrogen on the benzene ring is replaced by fluorine, and phenylalkyl in which at least one hydrogen on the benzene ring is replaced by fluorine and in the alkylene group thereof, the number of carbon atoms is 1 to 8 and at least one —CH 2 — may be replaced by —O—.  
   
   
       22 . The silsesquioxane derivative according to  claim 20 , wherein all of R's are same alkyl in which the number of carbon atoms is 1 to 10, at least one hydrogen is replaced by fluorine and one —CH 2 — may be replaced by —O—; and R 1  and R 2  represent independently methyl, isopropyl, tert-butyl or phenyl.  
   
   
       23 . The silsesquioxane derivative according to  claim 20 , wherein Z is hydrogen, alkenyl, or a group having any of —OH, alkenyl, —COOH, 2-oxapropanedioyl, polyalkyleneoxy, acryloyloxy, methacryloyloxy, oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, oxetanylene, —NH 2 , —CN and —SH; provided that Z is not any of a group having a dithiocarbamate group, a group having haloalkylphenyl and a group having an α-haloester group.  
   
   
       24 . The silsesquioxane derivative according to  claim 20 , wherein all of R's are the same group selected from alkyl in which the number of carbon atoms is 1 to 10, at least one hydrogen is replaced by fluorine and one —CH 2 — may be replaced by —O—, phenyl in which at least one hydrogen on the benzene ring is replaced by fluorine, and phenylalkyl in which at least one hydrogen on the benzene ring is replaced by fluorine and in the alkylene group thereof, the number of carbon atoms is 1 to 8 and one —CH 2 — may be replaced by —O—; and Z is hydrogen, alkenyl, or a group having any of —OH, alkenyl, —COOH, 2-oxapropanedioyl, polyalkyleneoxy, acryloyloxy, methacryloyloxy, oxirany1,3,4-epoxycyclohexyl, oxetanyl, oxetanylene, —NH 2 , —CN and —SH; provided that Z is not any of a group having a dithiocarbamate group, a group having haloalkylphenyl and a group having an α-haloester group.  
   
   
       25 . The silsesquioxane derivative according to  claim 20 , wherein all of R's are the same alkyl in which the number of carbon atoms is 1 to 10, at least one hydrogen is replaced by fluorine and one —CH 2 — may be replaced by —O—; R 1  and R 2  represent independently methyl, isopropyl, tert-butyl or phenyl; and Z is hydrogen, alkenyl, or a group having any of —OH, alkenyl, —COOH, 2-oxapropanedioyl, polyalkyleneoxy, acryloyloxy, methacryloyloxy, oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, oxetanylene, —NH 2 ,—CN and —SH; provided that Z is not any of a group having a dithiocarbamate group, a group having haloalkylphenyl and a group having an α-haloester group.