HuagongsheHuagongshe Chemistry Print Report · For research reference only
Carbonic acid, ethyl 4-formylphenyl ester → ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Carbonic acid, ethyl 4-formylphenyl ester | HCID 3084912 | — |
| Reactant | [1-(2,2-Dimethyl-1,3-benzodithiol-5-yl)ethyl]triphenylphosphonium bromide | HCID 19935456 | — |
| Product | ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate | HCID 19935517 | — |
Reaction Steps
In analogy to Example 45, by reacting [1-(2,2-dimethyl-1,3-benzodithiol-5-yl)ethyl]triphenylphosphonium bromide with ethyl 4- formylphenyl carbonate, there was obtained ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate, melting point 93°-94° C. Hydrolysis of this compound with aqueous potassium hydroxide in ethanol gave p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5yl)propenyl]phenol, melting point 123°-124° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05164387 |
| Source dataset | uspto-grants-1992_11 |
| ORD ID | ord-61563f0ae5124f41a08e368844aaeb4e |
| Source note | uspto-grants-1992_11 |