HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tin tetrachloride → HCID 23445625, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tin tetrachloride | HCID 24287 | — |
| Reactant | Oxalyl chloride | HCID 65578 | — |
| Reactant | 2-(2-Bromo-benzyl)4,5-dimethyl-furan | HCID 12093941 | — |
| Reactant | HCID 15895034 | HCID 15895034 | — |
| Catalyst | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 23445625 | HCID 23445625 | 66.4% |
Reaction Steps
The title compound was prepared according to the procedure in Example 5, step 2 using 3-cyclopentyl-p-anisic acid (2.00 g, 9.08 mmol, RN-59216-82-9), oxalyl chloride (0.871 mL, 9.99 mmol), N,N-dimethylformamide (2 drops), tin (IV) chloride (1.17 mL, 4.58 mmol) and 2-(2-bromo-benzyl)-4,5-dimethyl-furan (2.41 g, 9.08 mmol) in CH2Cl2. Purification on Biotage KP-Sil eluting with 4% EtOAc/pet. ether gave 2.82 g (66%) of the title compound as a clear oil. 1H NMR (DMSO-d6) δ1.40-1.44 (m, 2H), 1.57-1.73 (m, 4H), 1.79 (s, 3H), 1.87-1.93 (m, 2H), 2.16 (s, 3H), 3.21 (quintet, 1H), 3.86 (s, 3H), 3.93 (s, 2H), 7.04 (d, 1H), 7.11-7.18 (m, 2H), 7.29 (t, 1H), 7.51 (dd, 1H), 7.54-7.60 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06248764B1 |
| Source dataset | uspto-grants-2001_06 |
| ORD ID | ord-d9d90e68eef14d0d9a6384659584d054 |
| Source note | uspto-grants-2001_06 |