Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Epichlorohydrin | HCID 7835 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 54162008 | HCID 54162008 | — |
| Catalyst | Tetramethylammonium chloride | HCID 6379 | — |
| Product | HCID 54125222 | HCID 54125222 | — |
Reaction Steps
A mixture of 146.1 g of 3-(diethoxyphosphonoethyl)-5,5-dimethyl-hydantoin (0.5 mol), 694 g of epichlorohydrin (7.5 mols) and 0.5 g of tetramethylammonium chloride is stirred for 105 minutes at 105° C. 44 g of 50% strength aqueous sodium hydroxide solution are added dropwise over the course of 3 hours at 60° C, analogously to Example 1 (c). The mixture is worked up analogously to Example 1 (c) and 157 g of a yellow, clear resin (90.2% of theory) with 2.74 epoxide equivalents/kg (95.5% of theory) and a phosphorus content of 6.13% are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US03994858 |
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| Source dataset | uspto-grants-1976_11 |
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| ORD ID | ord-c1e5dff91bf2436b9ab9c5c225f64237 |
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| Source note | uspto-grants-1976_11 |
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