US5235083A
Expired / Lapsed
US
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Bis(silyl)alkanes and method for their preparation
Assignee: Korea Institute of Science and Technology
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Filing: 1992-12-16
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Granted: 1993-08-10
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Expires: 2012-12-16
Abstract
Abstract Bis(silyl)alkanes represented by the formulas (III), (IV) and (V) <IMAGE> <IMAGE> +TR <IMAGE> wherein R is H or phenyl, R' is a hydrogen atom or C1-4 alkyl and n is an integer ranging from 1 to 4. The present invention also provides a method for preparation of the bis(silyl)alkanes comprising the steps of mixing an organic compound, which is represented by the formula (I) and has a chloro at each side of its molecule, with a hydrogen chloride or an organic chloride represented by the formula (II), the organic chloride being capable of generating the hydrogen chloride during its reaction, in order to provide a mixture and directly reacting this mixture with a metal silicon at a reaction temperature of 260 DEG C.-370 DEG C. in the presence of a copper catalyst.
Inventors
- 👤 Il N. Jung
- 👤 Seung H. Yeon
- 👤 Bong W. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:48
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
33 words
A bis(silyl)alkane represented by the formula (III) ##STR8## wherein R is a hydrogen atom and n is an integer ranging from 2 to 4 or R is a phenyl and n is 1.
Claim 2
Dependent Claim
33 words
A bis(silyl)alkane represented by the formula (III) ##STR8## wherein R is a hydrogen atom and n is an integer ranging from 2 to 4 or R is a phenyl and n is 1.
Claim 3
Dependent Claim
17 words
A bis(silyl)alkane represented by the formula (IV) ##STR9## wherein R is a phenyl and n is 1.
Claim 4
Dependent Claim
17 words
A bis(silyl)alkane represented by the formula (IV) ##STR9## wherein R is a phenyl and n is 1.
Claim 5
Dependent Claim
17 words
A bis(silyl)alkane represented by the formula (V) ##STR10## wherein R is a phenyl and n is 1.
Claim 6
Dependent Claim
17 words
A bis(silyl)alkane represented by the formula (V) ##STR10## wherein R is a phenyl and n is 1.
Claim 7
Independent Claim
124 words
A method for preparation of bis(silyl)alkanes represented by the formulas (III), (IV) and (V) comprising the steps of: mixing an organic compound, which is represented by the formula (I) and has a chloro at each side of its molecule, with a hydrogen chloride or an organic chloride represented by the formula (II), said organic chloride being capable of generating said hydrogen chloride during its reaction, in order to provide a mixture; and directly reacting said mixture with a metal silicon at a reaction temperature of 260° C.-370° C. in the presence of a copper catalyst ##STR11## wherein R is a hydrogen atom or a phenyl, R' is a hydrogen atom or C 1-4 alkyl and n is an integer ranging from 1 to 4.
Claim 8
Independent Claim
124 words
A method for preparation of bis(silyl)alkanes represented by the formulas (III), (IV) and (V) comprising the steps of: mixing an organic compound, which is represented by the formula (I) and has a chloro at each side of its molecule, with a hydrogen chloride or an organic chloride represented by the formula (II), said organic chloride being capable of generating said hydrogen chloride during its reaction, in order to provide a mixture; and directly reacting said mixture with a metal silicon at a reaction temperature of 260° C.-370° C. in the presence of a copper catalyst ##STR11## wherein R is a hydrogen atom or a phenyl, R' is a hydrogen atom or C 1-4 alkyl and n is an integer ranging from 1 to 4.
Claim 9
Dependent Claim
24 words
A method according to claim 4, wherein in said compound represented by the formula (I), R is a hydrogen atom and n is 1.
Claim 10
Dependent Claim
23 words
A method according to claim 4, wherein in said compound represented by the formula (I), R is a phenyl and n is 1.
Claim 11
Dependent Claim
20 words
A method according to claim 4, wherein in said compound represented by the formula (II), R' is a hydrogen atom.
Claim 12
Dependent Claim
19 words
A method according to claim 4, wherein in said compound represented by the formula (II), R' is a n-propyl.
Claim 13
Dependent Claim
19 words
A method according to claim 4, wherein in said compound represented by the formula (II), R' is a n-butyl.
Claim 14
Dependent Claim
19 words
A method according to claim 4, wherein in said compound represented by the formula (II), R' is a t-butyl.
Claim 15
Dependent Claim
36 words
A method according to claim 4, wherein said mixture has a molar ratio of 1-3:1 of said organic chloride or hydrogen chloride represented by the formula (II) and said silane compound represented by the formula (I).
Claim 16
Dependent Claim
24 words
A method according to claim 4, wherein the reaction is carried out using a fluidized-bed reactor or an agitation reactor having a spiral agitator.
Claim 17
Dependent Claim
15 words
A method according to claim 4, wherein the reaction is carried out at 1-5 atm.
Claim 18
Dependent Claim
36 words
A method according to claim 4, wherein spherical micro powder of acid white clay of 1-50% by weight of said metal silicon is additionally added to the reactants in order to improve fluidity of said reactants.
Claim 19
Dependent Claim
41 words
A method according to claim 4, wherein a copper or a copper compound, said copper compound being capable of generating the copper under the reaction condition, of 1-20% by weight of the reactants is added to said reactants as a catalyst.
Claim 20
Dependent Claim
42 words
A method according to claim 4, wherein a cocatalyst of 0.01-5% by weight of solid reactants is added to the reactants, said cocatalyst comprising at least one of the metals calcium, zinc, lead, cadmium, manganese, magnesium, silver and chrome, and compounds thereof.
References Cited (Backward Citations)
US5075477A
Cited
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