HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 20706042, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Isobutylene | HCID 8255 | — |
| Reactant | HCID 20637686 | HCID 20637686 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 20706042 | HCID 20706042 | 82% |
Reaction Steps
According to example 54, 0.50 g of 3-cyclopentyl-L-phenylalanine.HCl was treated with 25 mL of isobutylene in 20 mL of 1,4-dioxane in the presence of 0.3 mL of conc. H2SO4. Work-up followed by acidification of the free amine with ethereal HCl afforded 0.49 g (82%) of tert-butyl 3-cyclopentyl-L-phenylalaninate.HCl as a white powder, m.p. 154-156° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06319702B1 |
| Source dataset | uspto-grants-2001_11 |
| ORD ID | ord-006f7c84c192470e8d2fd19a2cbaf730 |
| Source note | uspto-grants-2001_11 |