HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → HCID 10493514, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | CBZ-L-ALANINOL | HCID 10262499 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 10493514 | HCID 10493514 | 94.6% |
Reaction Steps
A solution of (S)-benzyl(1-hydroxypropan-2-yl)carbamate (400 g, 1.91 mol) and triethylamine (270 g, 2.67 mol) in methylene chloride (2.4 L) was cooled to 0° C. To this mixture was added methanesulfonyl chloride (263 g, 2.30 mol) at an internal temperature of 5° C. or below. Subsequently, the resulting reaction mixture was stirred at room temperature for 16 hours. After confirming the disappearance of the starting materials by TLC, to the reaction mixture was added purified water. The resulting organic layer was partitioned, washed with saturated brine, dried over magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure to give the target product as a yellow solid (519 g, yield 94.5%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09045460B2 |
| Source dataset | uspto-grants-2015_06 |
| ORD ID | ord-438ff6a4d7174533a6cb79e0f6918eda |
| Source note | uspto-grants-2015_06 |