Triacetoxyperiodinane → 2-(3-ethynyl-quinolin-6-yloxy)-N-(1-methyl-2-oxo-1-prop-2-ynyloxymethyl-ethyl)-2-methylsulfanyl acetamide

HRID 1892049Notes

Reaction equation

HRID 1892049 reaction equation
[C:1]([C:3]1[CH:4]=[N:5][C:6]2[C:11]([CH:12]=1)=[CH:10][C:9]([O:13][CH:14]([S:27][CH3:28])[C:15]([NH:17][C:18]([CH3:26])([CH2:21][O:22][CH2:23][C:24]#[CH:25])[CH2:19][OH:20])=[O:16])=[CH:8][CH:7]=2)#[CH:2].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>ClCCl>[C:1]([C:3]1[CH:4]=[N:5][C:6]2[C:11]([CH:12]=1)=[CH:10][C:9]([O:13][CH:14]([S:27][CH3:28])[C:15]([NH:17][C:18]([CH3:26])([CH2:21][O:22][CH2:23][C:24]#[CH:25])[CH:19]=[O:20])=[O:16])=[CH:8][CH:7]=2)#[CH:2]

Participants

4

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 595654102-(3-ethynyl-quinolin-6-yloxy)-N-(2-hydroxy-1-methyl-1-prop-2-ynyloxymethyl-ethyl)-2-methylsulfanyl-acetamide

Product 1

HCID 595653162-(3-ethynyl-quinolin-6-yloxy)-N-(1-methyl-2-oxo-1-prop-2-ynyloxymethyl-ethyl)-2-methylsulfanyl acetamideYield 110.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2-(3-Ethynyl-quinolin-6-yloxy)-N-(2-hydroxy-1-methyl-1-prop-2-ynyloxymethyl-ethyl)-2-methylsulfanyl-acetamide (1.0 g) from Stage 3 above in dichloromethane (40 ml) was treated with Dess-Martin periodinane (1.277 g). The reaction mixture was stirred at R.T. for 2 h 30 and then, quenched with sat. aqueous NaHCO3 and sat. aqueous sodium thiosulphate. The reaction mixture was vigorously stirred at rt. for 30 minutes after which time the two phases were separated. The organic layer was washed with sat. aqueous. NaHCO3. After separation, the organic phase was dried over sodium sulphate, filtered and evaporated to yield 1.10 g of 2-(3-ethynyl-quinolin-6-yloxy)-N-(1-methyl-2-oxo-1-prop-2-ynyloxymethyl-ethyl)-2-methylsulfanyl acetamide as a crude product (along with minor impurities. The crude mixture was used in the next step without any further purification.

Workup

  1. customquenched with sat. aqueous NaHCO3 and sat. aqueous sodium thiosulphate
  2. stirringThe reaction mixture was vigorously stirred at rt
  3. customfor 30 minutes after which time the two phases were separated
  4. washThe organic layer was washed with sat. aqueous
  5. customAfter separation
  6. dry with materialthe organic phase was dried over sodium sulphate
  7. filtrationfiltered
  8. customevaporated

Sources & evidence

ORD record
ord-ae8c44698f894ef58e090db17273c0e1
Source dataset
uspto-grants-2013_08
Patent number
US08507509B2

Reaction notes

Loading…