HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diethyl acetylenedicarboxylate → HCID 21163772, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diethyl acetylenedicarboxylate | HCID 69803 | — |
| Reactant | N2,N2-Dipropyl-1,3,4-thiadiazole-2,5-diamine | HCID 12899674 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 21163772 | HCID 21163772 | — |
Reaction Steps
The procedure used was as in Example 5. However, there were reacted 10 g of 2-amino-5-[di-(n-propyl)amino]-1,3,4-thiadiazole and 8.5 g of diethyl acetylenedicarboxylate in the presence of 200 ml of ethanol to give 10.2 g (63% of the theoretical yield) of ethyl 2-[di-(n-propyl)amino]-7H-1,3,4-thiadiazolo-[3,2-a]-pyrimidin-7-one-5-carboxylate, melting at 95°-97° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04281120 |
| Source dataset | uspto-grants-1981_07 |
| ORD ID | ord-a1dbf6b4e6f6460f8feca0fa1320280c |
| Source note | uspto-grants-1981_07 |