Fluorenyl substituted organosilanes and their preparation methods
AssigneeKorea Institue of Science and Technology
InventorsIl Nam Jung, Bok Ryul Yoo, Joon Soo Han, Yeon Seok Cho
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Abstract
The present invention relates to fluorenyl substituted organosilanes represented by the formula I and preparation methods thereof by reacting substituted biphenyls represented by the formul II with (dichloroalkyl)silanes represented by the formul III in the presence of Lewis acid catalysts such as aluminum chloride: ##STR1## (wherein m is 0 or 1 and n is 0, 1, or 2. y1 and y2 represent hydrogen, bromo, phenyl and they can be same or different. R represents hydrogen or methyl group. R.sub.j.sup.- can be dichloromethyl, 2,2-dichloroethyl, 3,3-dichloropropyl, 1,2-dichloroethyl, 2,3-dichloropropyl, 2,3-dichlorobutyl).
Claims4
(Fluorenylalkyl)silanes represented by formula (I) ##STR6## (wherein m is 0 or 1;
- n is 0, 1, or 2;
- and Y.sup.1 and Y.sup.2 which may be same or different represent hydrogen, bromo, or phenyl).
A method for preparing (fluorenylalkyl)silanes represented by formula (I) by reacting substituted biphenyl represented by formula (II) with (dichloroalkyl)silanes represented by formula (III) in the presence of Lewis acid catalyst at the reaction temperature between 0.degree. and 200.degree. C. ##STR7## (wherein m is 0 or 1;
- n is 0, 1, or 2;
- Y.sup.1 and Y.sup.2 which may be same or different represent hydrogen, bromo, or phenyl;
- R represents hydrogen or methyl group;
- and R' can be dichloromethyl, 2,2-dichloroethyl, 3,3-dichloropropyl, 1,2-dichloroethyl, 2,3-dichloropropyl, 2,3-dichlorobutyl).
Dependencies are inferred from the claim text.