HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tetramethyltin → 7-Methyl-5-nitro-1,3-benzothiazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tetramethyltin | HCID 11661 | — |
| Reactant | 7-Bromo-5-nitrobenzothiazole | HCID 22728031 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 7-Methyl-5-nitro-1,3-benzothiazole | HCID 22728027 | 67% |
Reaction Steps
A solution of 7-bromo-5-nitrobenzothiazole (0.15 g, 0.58 mmol), tetramethyltin (0.20 mL, 0.1.5 mmol) and catalytic amount of Cl2Pd(PPh3) 2 in a sealed tube was stirred for 12 h at 90° C. The reaction mixture was diluted with EtOAc and washed with brine several times. Organic solution was dried over Na2SO4 and concentrated in vacuo, yielding an oil which was subjected to column chromatography (EtOAc, neat) to provide 65 mg (0.32 mmol, 67%) of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06303643B1 |
| Source dataset | uspto-grants-2001_10 |
| ORD ID | ord-265d6f99aaa1485fa47d0a41f2d970a2 |
| Source note | uspto-grants-2001_10 |