HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → 2-Amino-6-methyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Isopropanol | HCID 3776 | — |
| Reactant | Amidinoacetic acid isopropyl ester | HCID 12391080 | — |
| Reactant | Ethyl 2-nitrobenzylidene-acetoacetate | HCID 53923751 | — |
| Product | 2-Amino-6-methyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-ethyl ester | HCID 70635117 | 39% |
Reaction Steps
Boiling a solution of 13.2 g of 2-nitrobenzylideneacetoacetic acid ethyl ester and 7.2 g of amidinoacetic acid isopropyl ester in 100 ml of ethanol for 6 hours yields 2-amino-6-methyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-ethyl ester of melting point 139°C (isopropanol). Yield: 39% of theory.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03971790 |
| Source dataset | uspto-grants-1976_07 |
| ORD ID | ord-2b43217ee6a44a5ba813b02c4999377d |
| Source note | uspto-grants-1976_07 |