HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzoic acid, 2-[(1-ethyl-2-methyl-1H-indol-3-yl)carbonyl]- → Phthalide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzoic acid, 2-[(1-ethyl-2-methyl-1H-indol-3-yl)carbonyl]- | HCID 3084978 | — |
| Reactant | 3-(2'-Carboxybenzoyl)-1-benzyl-2-methyl-indole | HCID 20565149 | — |
| Product | Phthalide | HCID 6885 | — |
Reaction Steps
If the 3-(2'-carboxybenzoyl)-1-ethyl-2-methyl-indole in Example 1 is replaced by an equimolar amount of 3-(2'-carboxybenzoyl)-1-benzyl-2-methyl-indole, with the procedure otherwise being as described in Example 1, there is obtained 4.5 g of a phthalide compound of the formula ##STR12## which melts at 138°-142° C. This colour former develops on silton clay a blue colour of λmax. 600 nm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04295663 |
| Source dataset | uspto-grants-1981_10 |
| ORD ID | ord-18a80de9099c447eaef00974a9444d98 |
| Source note | uspto-grants-1981_10 |