HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → Hydrochloric Acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | HCID 13053012 | HCID 13053012 | — |
| Product | Hydrochloric Acid | HCID 313 | — |
| Product | HCID 13953800 | HCID 13953800 | — |
Reaction Steps
Following the procedure of Example 2, 6,8-dichloro-4-cyano-4-trimethylsilyloxy-3,4-dihydro-2H-1-benzopyran (3.0 g.) and stannous chloride dihydrate (15.0 g.) were reacted in glacial acetic acid (25 ml.) and concentrated hydrochloric acid (25 ml.) to form 6,8-dichloro-3,4-dihydro-2H-1-benzopyran-4-carboxylic acid. Recrystallization from cyclohexane yielded 1.33 g. of product, m.p. 124.5°-126° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04210663 |
| Source dataset | uspto-grants-1980_07 |
| ORD ID | ord-33a0f824c5374d3b95e896ddbb233500 |
| Source note | uspto-grants-1980_07 |