HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triphenylphosphine → 5-chloro-3-((1-t-butoxycarbonyl-2-(S)-pyrrolidinyl)methoxy)pyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | 3-Hydroxy-5-chloropyridine | HCID 582305 | — |
| Reactant | (S)-(-)-N-Boc-prolinol | HCID 643448 | — |
| Reactant | Diethyl azodicarboxylate | HCID 5462977 | — |
| Product | 5-chloro-3-((1-t-butoxycarbonyl-2-(S)-pyrrolidinyl)methoxy)pyridine | HCID 54299383 | 60% |
Reaction Steps
(S)-1-t-Butoxycarbonyl-2-pyrrolidinemethanol (1.75 g, 8.71 mmol, prepared as in Example 15a) and 5-chloro-3-pyridinol (1.69 g, 13.10 mmol, Aldrich Chemical Co.). were allowed to react in the presence of triphenylphosphine and DEAD as described in Example 2a. The crude product was purified by chromatography over silica gel eluted with hexane/EtOAc to provide 1.49 g (60%) of the title compound as a pale yellow oil. TLC Rf 0.75 (1:1 EtOAc/Hex). MS (DCI/NH3) m/e 313 (M+H)+ with 35Cl and m/e 315 (M+H)+ with 37Cl.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05948793 |
| Source dataset | uspto-grants-1999_09 |
| ORD ID | ord-d62a91b2cdd449f98c7d09e38c1cdaa7 |
| Source note | uspto-grants-1999_09 |