2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile
- CAS NO.:1187595-85-2
- Empirical Formula: C7H10N2O2S
- Molecular Weight: 186.23
- MDL number: MFCD22987586
- EINECS: 258-714-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-30 14:17:11
What is 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile?
The Uses of 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile
2-(1-(Ethylsulfonyl)azetidin-3-ylidene)acetonitrile is an intermediate in the synthesis of Baricitinib, a JAK 1 and 2 inhibitor used in the treatment of rheumatoid arthritis.
Synthesis
2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile is synthesized by first treating azetidine-3-ol hydrochloride with an equimolar equivalent of an alkanesulfonyl chloride, preferably ethanesulfonyl chloride, to give l-ethylsulfonylazetidin-3-ol. Preferably, the reaction is performed in a biphasic solution comprising a mixture of an organic phase and a aqueous phase, preferably THF with an aqueous solution which is basic, while maintaining the solution at room temperature or a temperature slightly below room temperature, preferably 20 °C. The reaction is followed to completion using standard monitoring techniques. Typically, the reaction is complete within 1 to 5 hours. The organic layer is removed, preferably by distillation, and the aqueous layer is extracted with an appropriate solvent such as toluene, p-cymene, and CPME. Preferably the extraction solvent is toluene. Alternatively, the toluene extractions can be excluded if recrystallization of 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile is performed.
Properties of 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile
Melting point: | 67-69°C |
Boiling point: | 360.8±52.0 °C(Predicted) |
Density | 1.33±0.1 g/cm3(Predicted) |
storage temp. | Sealed in dry,Room Temperature |
solubility | DMSO (Slightly), Methanol (Slightly) |
form | Solid |
pka | -8.49±0.20(Predicted) |
color | Off-White to Light Yellow |
InChI | InChI=1S/C7H10N2O2S/c1-2-12(10,11)9-5-7(6-9)3-4-8/h3H,2,5-6H2,1H3 |
Safety information for 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
Computed Descriptors for 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile
InChIKey | HQUIOHSYUKWGOM-UHFFFAOYSA-N |
SMILES | C(#N)/C=C1\CN(S(CC)(=O)=O)C\1 |
Abamectin manufacturer
V AND V PHARMA INDUSTRIES
Bulat Pharmaceutical Pvt Ltd
SETV ASRV LLP
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