Methane → HCID 19896600, compound

A suspension of 2-mercapto-5-methyl-1,3,4-oxadiazole potassium salt (33.0 g, 214 mmol) in CH3CN (330 mL) was stirred at R.T. for 24 h in the presence of BrCH2Cl (130 g, 1 mol). Then the solvent was evaporated and the residue partitioned between H2O and EtOAc. The organic phase was separated, dried (MgSO4) and evaporated. The residue thus obtained was redissolved in Et2O; the etheral solution was treated with charcoal and filtered through a pad of Celite. Evaporation of the filtrate left 29.4 g of a colorless oil. The crude oil was dissolved in acetone (350 mL), and sodium iodide (134 g, 894 mmol) was added. The resulting mixture was refluxed for 24 h, diluted with Et2O and washed with H2O. The aqueous phase was reextracted with Et2O. The organic extracts were combined, washed with H2O and brine, dried (MgSO4), treated with charcoal, filtered and finally evaporated to give 40.0 g (87.3%) of the title compound as a yellowish oil.

1. customThen the solvent was evaporated
2. customthe residue partitioned between H2O and EtOAc
3. customThe organic phase was separated
4. dry with materialdried (MgSO4)
5. customevaporated
6. customThe residue thus obtained
7. filtrationfiltered through a pad of Celite
8. customEvaporation of the filtrate
9. waitleft 29.4 g of a colorless oil
10. dissolutionThe crude oil was dissolved in acetone (350 mL)
11. temperatureThe resulting mixture was refluxed for 24 h
12. washwashed with H2O
13. washwashed with H2O and brine
14. dry with materialdried (MgSO4)
15. additiontreated with charcoal
16. filtrationfiltered
17. customfinally evaporated

ORD record

ord-9f1a3db220074e0fa1b041c5a3f11da7

Source dataset

uspto-grants-1992_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05116833