HuagongsheHuagongshe Chemistry Print Report · For research reference only
Chlorosuccinimide → HCID 18005866, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Chlorosuccinimide | HCID 31398 | — |
| Reactant | Ethyl 7-hydroxychromane-2-carboxylate | HCID 11085381 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 18005866 | HCID 18005866 | 52% |
Reaction Steps
A solution of ethyl 7-hydroxychroman-2-carboxylate (5.0 g, 22.5 mmol) in THF is treated with N-chlorosuccinimide (NCS) (3.6 g, 27 mmol), stirred for 40 hr and concentrated in vacuo. The resultant residue is purified chromatographically (silica gel/20% EtOAc in hexanes as eluent) to give the title product, 3.0 g (52% yield), identified by NMR and mass spectral analyses.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06638972B2 |
| Source dataset | uspto-grants-2003_10 |
| ORD ID | ord-719dc594dca048ce95a7e05ba4fa700b |
| Source note | uspto-grants-2003_10 |