HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2081497Generated: October 30, 2026
Formaldehyde → (2-Methyl-1,2,3,4-tetrahydroisoquinolin-3-yl)methanol
https://huagongshe.com/reaction/2081497
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | (1,2,3,4-Tetrahydro-isoquinolin-3-yl)-methanol | HCID 3752277 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Solvent | Formic Acid | HCID 284 | — |
| Product | (2-Methyl-1,2,3,4-tetrahydroisoquinolin-3-yl)methanol | HCID 589740 | — |
Reaction Steps
In a sealed tube, a mixture of 1.80 g of 1,2,3,4-tetrahydro-3-isoquinolinemethanol, 1.69 g of 90% formic acid and 1.04 g of 35% formalin was heated at 140° C. for 16 hours. The reaction solution was cooled and then made alkaline by addition of 10% aqueous sodium solution. Subsequently, potassium carbonate was added to the solution and a precipitated oil was extracted with chloroform. The extract was dried over anhydrous sodium sulfate and placed under reduced pressure to remove the solvent. There was obtained 1.95 g of 2-methyl-1,2,3,4-tetrahydro-3-isoquinolinemethanol.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05183811 |
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| Source dataset | uspto-grants-1993_02 |
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| ORD ID | ord-5a05dda084ce464681427f416f392cdf |
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| Source note | uspto-grants-1993_02 |
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