Method for producing chlorosilanes
First Claim
1. A method for producing chlorosilanes represented by the general formula, ##STR7## wherein R1 and R4, which may be the same or different, represent an alkyl group having from 1 to 5 carbon atoms, a chloromethyl group, an ethynyl group or a halogen atom;
- R2 and R3, which may be the same or different, represent an alkyl group having from 1 to 3 carbon atoms;
R5 and R6, which may be the same or different, represent an alkyl group having from 1 to 2 carbon atoms; and
R7 represents an alkyl group having from 1 to 18 carbon atoms, which comprises reacting a disiloxane represented by the general formula, ##STR8## wherein R1, R2, R3, R4, R5 and R6 are as defined above, or a silanol represented by the general formula, ##STR9## wherein R2, R3 and R7 are as defined above, with phosgene in the presence or absence of a tertiary amide.
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Abstract
A method for producing chlorosilanes, which are useful in a wide range of industrial field as an intermediate for organosilicon products such as silicone rubbers, silicone oils, silicone resins, etc. as well as a raw material for the production of organic chemicals such as medicines, agricultural chemicals, dyestuffs, etc., represented by the general formula, ##STR1## wherein R1 and R4, which may be the same or different, represent an alkyl group having from 1 to 5 carbon atoms, a chloromethyl group, an ethynyl group or a halogen atom; R2 and R3, which may be the same or different, represent an alkyl group having from 1 to 3 carbon atoms; R5 and R6, which may be the same or different, represent an alkyl group having from 1 to 2 carbon atoms; and R7 represents an alkyl group having from 1 to 18 carbon atoms, which comprises reacting a disiloxane represented by the general formula, ##STR2## wherein R1, R2, R3, R4, R5 and R6 are as defined above, or a silanol represented by the general formula, ##STR3## wherein R2, R3 and R7 are as defined above, with phosgene in the presence or absence of a tertiary amide.
65 Citations
6 Claims
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1. A method for producing chlorosilanes represented by the general formula, ##STR7## wherein R1 and R4, which may be the same or different, represent an alkyl group having from 1 to 5 carbon atoms, a chloromethyl group, an ethynyl group or a halogen atom;
- R2 and R3, which may be the same or different, represent an alkyl group having from 1 to 3 carbon atoms;
R5 and R6, which may be the same or different, represent an alkyl group having from 1 to 2 carbon atoms; and
R7 represents an alkyl group having from 1 to 18 carbon atoms, which comprises reacting a disiloxane represented by the general formula, ##STR8## wherein R1, R2, R3, R4, R5 and R6 are as defined above, or a silanol represented by the general formula, ##STR9## wherein R2, R3 and R7 are as defined above, with phosgene in the presence or absence of a tertiary amide. - View Dependent Claims (2, 3, 4, 5, 6)
- R2 and R3, which may be the same or different, represent an alkyl group having from 1 to 3 carbon atoms;
Specification
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- Resources
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Current AssigneeSumitomo Chemical Company Limited
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Original AssigneeSumitomo Chemical Company Limited
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InventorsMasumoto, Katsuhisa, Hata, Kazuhiko, Kamoda, Masaru, Ohishi, Toshiro, Murata, Tetsuo, Kobayashi, Yoshinori
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Primary Examiner(s)Shaver, Paul F.
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Application NumberUS07/150,902Time in Patent Office267 DaysField of Search556/467, 556/477US Class Current556/467CPC Class CodesC07F 7/123 by reactions involving the ...
