HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,5-Dibromopentane → HCID 14329715, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,5-Dibromopentane | HCID 8100 | — |
| Reactant | HCID 10171518 | HCID 10171518 | — |
| Product | HCID 14329715 | HCID 14329715 | 90% |
Reaction Steps
Using the procedure and molar proportions of example 71, 1 g of racemic-6-hydroxy-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid methyl ester was alkylated with 1,5-dibromopentane giving racemic-6-[(5-bromopentyl)-oxy]-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid methyl ester as a colorless solid, mp 72.5°-74.5° C. in 90% yield after purification by chromatography on silica gel.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04785017 |
| Source dataset | uspto-grants-1988_11 |
| ORD ID | ord-8698319b06274dcca20f64faaa3e284e |
| Source note | uspto-grants-1988_11 |