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HomeProduct name list2,3-Lutidine

2,3-Lutidine

Synonym(s):2,3-Dimethylpyridine

  • CAS NO.:583-61-9
  • Empirical Formula: C7H9N
  • Molecular Weight: 107.15
  • MDL number: MFCD00009605
  • EINECS: 209-514-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-07 19:09:42
2,3-Lutidine Structural

What is 2,3-Lutidine?

Description

2,3-Lutidine belongs to the pyridine group of derivatives and is a commercially available organic reagent used as an intermediate in organic synthesis and as an acid-binding agent. It is also used as a food additive for flavouring purposes.

Chemical properties

clear colorless to slightly yellow liquid

The Uses of 2,3-Lutidine

2,3-Lutidine is a lansoprazole intermediates. It is used as pharmaceutical intermediate.

Definition

LOTUS: 2,3-Lutidine is a natural product found in Nicotiana tabacum with data available.

Synthesis Reference(s)

The Journal of Organic Chemistry, 66, p. 53, 2001 DOI: 10.1021/jo000724t

Purification Methods

Steam distil it from a solution containing about 1.2 equivalents of 20% H2SO4, until ca 10% of the base has been carried over with the non-basic impurities. The acidic solution is then made alkaline, and the base is separated, dried over NaOH or BaO, and fractionally distilled. The distilled lutidine is converted to its urea complex by stirring 100g with 40g of urea in 75mL of H2O, cooling to 5o, filtering at the pump, and washing with 75mL of H2O. The complex, dissolved in 300mL of H2O, is steam distilled until the distillate gives no turbidity with a little solid NaOH. The distillate is then treated with excess solid NaOH, and the upper layer is removed: the aqueous layer is then extracted with diethyl ether. The upper layer and the ether extract are combined, dried (K2CO3), and distilled through a short column. Final purification is by fractional crystallisation using partial freezing. The picrate crystallises from EtOH with m 187-188o. [Kyte et al. J Chem Soc 4454 1960, Beilstein 20 H 243, 20 II 159, 20 III/IV 2765, 20/6 V 15.]

Properties of 2,3-Lutidine

Melting point: -15 °C (lit.)
Boiling point: 162-163 °C (lit.)
Density  0.945 g/mL at 25 °C (lit.)
refractive index  n20/D 1.508(lit.)
Flash point: 122 °F
storage temp.  Inert atmosphere,Room Temperature
form  Liquid
pka 6.57(at 25℃)
color  Clear colorless to slightly yellow
Water Solubility  95 g/L (26 ºC)
BRN  106418
CAS DataBase Reference 583-61-9(CAS DataBase Reference)
NIST Chemistry Reference Pyridine, 2,3-dimethyl-(583-61-9)
EPA Substance Registry System 2,3-Dimethylpyridine (583-61-9)

Safety information for 2,3-Lutidine

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H226:Flammable liquids
H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H318:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 2,3-Lutidine

InChIKey HPYNZHMRTTWQTB-UHFFFAOYSA-N
SMILES CC1=C(N=CC=C1)C

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