HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → 2-Mercaptomethyl-3,5-dicarboetoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Diethyl 2-(chloromethyl)-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate | HCID 3064723 | — |
| Reactant | 1-Butanaminium,N,N,N-tributyl-, sulfide (1:1) | HCID 16205437 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 2-Mercaptomethyl-3,5-dicarboetoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine | HCID 11675833 | 70.4% |
Reaction Steps
A solution of 2-chloromethyl-3,5-dicarboethoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine (1 g) and tetrabutylammonium hydrogen sulfide (0.7 g) in methylene chloride (10 ml) is stirred at -10° C., for 20 minutes, neutralized with a drop of AcOH, evaporated under vacuum and the residue recrystallized from Et2O to give 0.7 g of 2-mercaptomethyl-3,5-dicarboetoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine, m.p. 145°-147° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05021436 |
| Source dataset | uspto-grants-1991_06 |
| ORD ID | ord-0b934954ba874e34b854e3cbdf3d7c28 |
| Source note | uspto-grants-1991_06 |