Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Dibutylamine | HCID 8148 | — |
| Reactant | 2,6-Di-tert-butylphenol | HCID 31405 | — |
| Reactant | pyridine-4-thiol | HCID 178418431 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178440757 | HCID 178440757 | — |
Reaction Steps
4-Mercaptopyridine (11.1 g, 0.1 mol), 2,6-di-tertbutylphenol (20,6 g, 0.1 mol), paraformaldehyde (3.0 g, 0.1M) and di-n-butylamine (1 ml) are heated at 80° C. for two and half hours, after which time, thin layer chromatography (t.l.c.) showed the reaction to be complete. The reaction mixture is cooled to 50° C., ethanol (100 ml) is added and the product is crystallised as a pale yellow solid (24.7 g, 78.4% of theory) of m.p. 169°-171° C. (Found C=73.30; H=8.49; N=4.31; S=9.71 C20H27NOS requires C=72.95; H=8.21; N=4.26 and S=9.73%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05190723 |
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| Source dataset | uspto-grants-1993_03 |
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| ORD ID | ord-e57284cf975f446288dee76b646703fd |
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| Source note | uspto-grants-1993_03 |
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