Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Methylpyridine | HCID 7975 | — |
| Reactant | Chlorosulfonic acid | HCID 24638 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 13185026 | HCID 13185026 | — |
Reaction Conditions
| Temperature | -6.199999809265137 °C |
|---|
Reaction Steps
To a 50 ml 3-neck RBF equipped with a magnetic stir bar, thermocouple probe, addition funnel, nitrogen inlet adapter, and a rubber septum, was charged anhydrous dichloromethane (Volume: 7.5 ml) and 2-picoline (4.38 ml, 44.2 mmol). The mixture was chilled in an ice/NaCl bath to −6.2° C. A solution of chlorosulfonic acid (1.434 ml, 21.41 mmol) in anhydrous dichloromethane (Volume: 7.5 ml) was added over 30 minutes, with the temperature being maintained below 5° C., to give an orange solution. The solution was stirred for 30 minutes, split solution into 2 equal parts (9.5 ml each). One part was added to the sulfation reaction at room temperature as described in this Example, step 2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09120796B2 |
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| Source dataset | uspto-grants-2015_09 |
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| ORD ID | ord-32e7fc16666144c48feed12b8de7888f |
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| Source note | uspto-grants-2015_09 |
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