Silicon compound

Details Silicon compound Silicon compound

2007-11-13

2007-11-13

Barts, Samuel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C528S034000

Reexamination Certificate

active

10523702

ABSTRACT:
A silicon compound represented by Formula (1). In Formula (1), R1is a group independently selected respectively from the group consisting of a hydrogen atom, alkyl, substituted or non-substituted aryl and substituted or non-substituted arylalkyl, and A1is an organic group substituted with a halogenated sulfonyl group and is preferably a group represented by Formula (2). In Formula (2), X is halogen; R2is alkyl; a is an integer of 0 to 2; and Z1is a single bond or alkylene having a carbon number of 1 to 10.The silicon compound provided by the present invention is a silsesquioxane derivative having an excellent living polymerizable radical polymerization initiating function. For example, it is possible to commence polymerization by allowing an acryl base monomer to coexist to form an acryl base polymer making use of one point of the structure of the silsesquioxane in the present invention as a starting point. Because a halogenated sulfonyl group has a strong electrophilicity, it is possible to synthesize various silsesquioxane derivatives by reacting the silicon compound provided by the present invention with various nucleophilic reagents, and it can actively be used as an intermediate useful for organic synthesis.

REFERENCES:
patent: 6100417 (2000-08-01), Lichtenhan et al.
patent: 2001-247741 (2001-09-01), None

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