HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Carbonate → tetrahydro-thiopyran-4-carboxylic acid N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl hydrazide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 2-(Trifluoromethoxy)phenylboronic Acid (contains varying amounts of Anhydride) | HCID 2777204 | — |
| Reactant | tetrahydro-thiopyran-4-carboxylic acid N'-[2-(2-bromo-4-fluoro-phenoxy)-acetyl]-N'-isopropyl-hydrazide | HCID 58689901 | — |
| Solvent | 1,2-Dimethoxyethane | HCID 8071 | — |
| Product | tetrahydro-thiopyran-4-carboxylic acid N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl hydrazide | HCID 11584360 | 45.1% |
Reaction Steps
A solution of tetrahydro-thiopyran-4-carboxylic acid N′-[2-(2-bromo-4-fluoro-phenoxy)-acetyl]-N′-isopropyl-hydrazide (116 mg, 0.27 mmol) in DME (2.5 ml)/2M Na2CO3 (0.468 ml, 0.94 mmol) was treated with 2-trifluoromethoxyphenylboronic acid (83 mg, 0.40 mmol) and Pd[PPh3]4 (62 mg, 0.053 mmol) in a microwave oven at 150° C., for 10 min. The reaction mixture was partitioned between water and dichloromethane. The organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated. The crude was adsorbed on silica and purified on a silica gel column with a 30-50% ethyl acetate/hexane gradient to afford the product as a solid (62.6 mg, 45%). MS m/e 515.48 (M+H+)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07317125B2 |
| Source dataset | uspto-grants-2008_01 |
| ORD ID | ord-599d314986e74129b815e7dcbb29a1d6 |
| Source note | uspto-grants-2008_01 |