HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanamine, hydrochloride (1:1) → 2-(4-Carbomethoxyphenyl)-1-methyl-5-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-pyrrole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanamine, hydrochloride (1:1) | HCID 11637 | — |
| Reactant | 1-(4-Carbomethoxyphenyl)-4-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-butane-1,4-dione | HCID 14726492 | — |
| Product | 2-(4-Carbomethoxyphenyl)-1-methyl-5-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-pyrrole | HCID 14726514 | 68.5% |
Reaction Steps
8.0 g (20 millimoles) of 1-(4-carbomethoxyphenyl)-4-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-butane-1,4-dione (for preparation see Example 9) and 6.7 g (0.1 mole) of methylammonium chloride were converted similarly to Example 10 and the product was recrystallized from methanol to give 5.5 g of the title compound of melting point 104°-105° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05196532 |
| Source dataset | uspto-grants-1993_03 |
| ORD ID | ord-7cd1646b56ac4c36bb1882b63953d826 |
| Source note | uspto-grants-1993_03 |