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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2259800Generated: October 25, 2026

Methanamine, hydrochloride (1:1) → 2-(4-Carbomethoxyphenyl)-1-methyl-5-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-pyrrole

https://huagongshe.com/reaction/2259800

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanamine, hydrochloride (1:1)HCID 11637—
Reactant1-(4-Carbomethoxyphenyl)-4-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-butane-1,4-dioneHCID 14726492—
Product2-(4-Carbomethoxyphenyl)-1-methyl-5-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-pyrroleHCID 1472651468.5%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05475017
Source datasetuspto-grants-1995_12
ORD IDord-3c403bd67aa94b0ba7d0015aab44e2d4
Source noteuspto-grants-1995_12