HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → 4-(Butylamino)-1-ethyl-5,6-dihydrobenzo[5,6]cyclohepta[1,2-b]pyrazolo[4,3-e]pyridin-11(1H)-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | N-Butyl-11-(butylimino)-1-ethyl-1,5,6,11-tetrahydrobenzo-[5,6]cyclohepta[1,2-b]pyrazolo[4,3-e]pyridin-4-amine | HCID 22757739 | — |
| Solvent | Diethylether ethylacetate | HCID 21584169 | — |
| Product | 4-(Butylamino)-1-ethyl-5,6-dihydrobenzo[5,6]cyclohepta[1,2-b]pyrazolo[4,3-e]pyridin-11(1H)-one | HCID 22757766 | — |
Reaction Steps
7.2 g. of N-butyl-11-(butylimino)-1-ethyl-1,5,6,11-tetrahydrobenzo[5,6]cyclohepta[1,2-b]pyrazolo[4,3-e]pyridin-4-amine (0.018 mol.) and 100 ml. of aqueous sulfuric acid (30%) are reacted according to the procedure of Example 6, yield: 4.7 g. (75%); m.p. 181°-183° (ethyl acetate/ether).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04128717 |
| Source dataset | uspto-grants-1978_12 |
| ORD ID | ord-1b0a258bfe104ae1a025a9460502811f |
| Source note | uspto-grants-1978_12 |