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CAS No.: | 294-40-6 |
---|---|
Name: | Cyclopentasiloxane |
Article Data: | 3 |
Molecular Structure: | |
Formula: | H10O5 Si5 |
Molecular Weight: | 230.504 |
Synonyms: | 1,3,5,7,9-Pentaoxa-2,4,6,8,10-pentasilacyclodecane;Jeesile CPS 312 |
PSA: | 46.15000 |
LogP: | -4.92300 |
Dichlorosilane
B
1,1,3,3,5,5,7,7,9,9-decahydrocyclopentasiloxane
C
1,1,3,3,5,5,7,7,9,9,11,11-dodecahydro-cyclohexasiloxane
Conditions | Yield |
---|---|
With water In dichloromethane hydrolysis H2SiCl2 in dichloromethane soln. either with stoich. amt. water at -30 to -20°C or by slow, controlled addn. slight excess water at 0°C; products isolated by GC; | A 6.1% B 22.6% C 12% |
water
Dichlorosilane
B
1,1,3,3,5,5,7,7,9,9-decahydrocyclopentasiloxane
C
1,1,3,3,5,5,7,7,9,9,11,11-dodecahydro-cyclohexasiloxane
E
cycloheptasiloxane
Conditions | Yield |
---|---|
In diethyl ether SiH2Cl2 and ether was mixed at -40°C, warming to room temp., addn. of H2O dropwise over 7 min, stirring at room temp. for 30 min; further products; not isolated, detected by GLC; |
water
Dichlorosilane
B
1,1,3,3,5,5,7,7,9,9-decahydrocyclopentasiloxane
C
1,1,3,3,5,5,7,7,9,9,11,11-dodecahydro-cyclohexasiloxane
D
cycloheptasiloxane
Conditions | Yield |
---|---|
In pentane SiH2Cl2 and ether was mixed at -40°C, warming to room temp., addn. of H2O dropwise over 7 min, stirring at room temp. for 30 min; further products; not isolated, detected by GLC; |
Dichlorosilane
zinc(II) carbonate
B
1,1,3,3,5,5,7,7,9,9-decahydrocyclopentasiloxane
C
1,1,3,3,5,5,7,7,9,9,11,11-dodecahydro-cyclohexasiloxane
Conditions | Yield |
---|---|
In hexane Product distribution / selectivity; Cooling; |
Dichlorosilane
B
1,1,3,3,5,5,7,7,9,9-decahydrocyclopentasiloxane
C
1,1,3,3,5,5,7,7,9,9,11,11-dodecahydro-cyclohexasiloxane
Conditions | Yield |
---|---|
In ethyl acetate Cooling; |