HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Methyl-3,4,5-trichloroisothiazolium methylsulfate → 4,5-Dichloro-2-methyl-4-isothiazolin-3-thione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Methyl-3,4,5-trichloroisothiazolium methylsulfate | HCID 12889023 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 4,5-Dichloro-2-methyl-4-isothiazolin-3-thione | HCID 12889053 | 78% |
Reaction Steps
2-Methyl-3,4,5-trichloroisothiazolium methylsulfate (10.7 g) thiourea (2.6 g) were added to 100 ml of ethanol at room temperature. After stirring overnight the product which had precipitated from solution was collected by filtration and recrystallized from ethanol to yield 5.3 g (78%) of 4,5-dichloro-2-methyl-4-isothiazolin-3-thione, mp 143-144.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04281136 |
| Source dataset | uspto-grants-1981_07 |
| ORD ID | ord-ce8c2f230b2c4a90b5e628b06adf140a |
| Source note | uspto-grants-1981_07 |