Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1,4-Butanediol | HCID 8064 | — |
| Reactant | Dibutyltin oxide | HCID 61221 | — |
| Reactant | Methyl 3-hydroxybutyrate, (R)- | HCID 2724279 | — |
| Product | HCID 86748171 | HCID 86748171 | 90.4% |
Reaction Steps
In a 200 ml reactor were charged 105.5 g (0.893 mol) of methyl (R)-3-hydroxybutyrate (hereinafter abbreviated as (R)-3HB), 8.05 g (0.0893 mol) of 1,4-butanediol, and 0.45 g (1.80 mmol) of dibutyltin oxide, and the mixture was distilled at 130° C. for 3 hours in a nitrogen stream to remove methanol. The pressure was gradually diminished to 0.5 mmHg, and the reaction mixture was stirred at 140° C. under that reduced pressure for 5 hours to obtain 76.8 g (percent yield: 90.4%) of the titled oligomer.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05352763 |
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| Source dataset | uspto-grants-1994_10 |
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| ORD ID | ord-1c72fc291155445582aa67762add3571 |
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| Source note | uspto-grants-1994_10 |
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