Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | L-tert-Leucine | HCID 164608 | — |
| Solvent | Formic Acid | HCID 284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 6931667 | HCID 6931667 | — |
Reaction Steps
A solution of acetic anhydride (18 ml) in dichloromethane (15 ml) was added drop wise to a cooled (0° C.) solution of L-tert-leucine (5 g) in formic acid (50 ml). The reaction mixture was stirred at 0° C. for 1 h and at room temperature for 3 h. Water (25 ml) was added. The mixture was stirred for another 30 min, concentrated in vacuo and co-evaporated twice with toluene. The remaining residue was triturated with diethyl ether. The solids were collected and dried in vacuo (50° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08071587B2 |
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| Source dataset | uspto-grants-2011_12 |
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| ORD ID | ord-4301052650164476b023456ac425f0ea |
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| Source note | uspto-grants-2011_12 |
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