ChemicalBook--->CAS DataBase List--->22128-43-4

22128-43-4

22128-43-4 Structure

22128-43-4 Structure
IdentificationBack Directory
[Name]

4-METHYLOCTIN-4-OL
[CAS]

22128-43-4
[Synonyms]

-1-octyn-4-oL
4-METHYLOCTIN-4-OL
4-Methyl-1-octyn-1-ol
4-Methyl-1-octyn-4-ol
1-Octyn-4-ol, 4-methyl-
[Molecular Formula]

C9H16O
[MDL Number]

MFCD02660904
[MOL File]

22128-43-4.mol
[Molecular Weight]

140.22
Chemical PropertiesBack Directory
[Melting point ]

-16°C (estimate)
[Boiling point ]

226.76°C (rough estimate)
[density ]

0.8565 (estimate)
[refractive index ]

1.4395 (estimate)
[pka]

14.36±0.29(Predicted)
[InChI]

InChI=1S/C9H16O/c1-4-6-8-9(3,10)7-5-2/h2,10H,4,6-8H2,1,3H3
[InChIKey]

VWNNGOBVFMFPNE-UHFFFAOYSA-N
[SMILES]

C#CCC(C)(O)CCCC
Hazard InformationBack Directory
[Hazard]

Moderately toxic by ingestion. A moderateeye irritant.
[Uses]

4-METHYLOCTIN-4-OL (also known as 4-Methyl-1-octyn-4-ol) serves as a pharmaceutical intermediate in the preparation of Misoprostol. Misoprostol is a synthetic prostaglandin drug used for the prevention and treatment of gastric and duodenal ulcers, induction of labour, and termination of pregnancy.
[Synthesis]

In a 50 L glass reactor, 2.2 kg (91.6 mol) of metallic magnesium and 20 L of anhydrous tetrahydrofuran were added, and a reaction was initiated by stirring of about 3.21 kg 3-bromopropyne (26.9111001). After the reaction was initiated, the system became black, A mixture of 7.51 kg of 2-hexanone (75 mol), 7.5 kg of 3-bromopropyne (63 mol) and 20 ml of anhydrous tetrahydrofenosine was added dropwise at 25-35 ° C, and the reaction mixture was added dropwise (2-hexanone , Organic phase merger, dry, concentrated crude. The product was purified by distillation under reduced pressure to give 7.5 kg of pure 4-Methyloctin-4-ol with a purity of 97.1% and a yield of 71.4%
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