Method of purifying 1,3-bis(3-aminopropyl)-1,1,3,3-tetraorganodisiloxane
US5861085A · kind A · utility
1Cited by
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10Claims
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Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of purifying 1,3-bis(3-aminopropyl)-1,1,3,3-tetraorganodisiloxane represented by the formula (I) as described hereinbefore, which comprises recrystallizing a crude product of the compound as its acid addition salt, and then neutralizing the acid addition salt to obtain a purified product of the compound. According to the method of the present invention, the compound of the formula (I) can be purified at high purity in high yield, and the purification treatment can be industrially conducted.
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