1,4-Dioxane → HCID 18412392, compound
Reaction equation
[OH:1][CH2:2][C:3]1[N:4]=[C:5]([CH2:9][O:10][CH3:11])[N:6]([CH3:8])[CH:7]=1.OCC1N(C)C(COC)=NC=1.[Cl:23]N1C(=O)CCC1=O.O1CCOCC1>C(OCCO)C>[Cl:23][C:7]1[N:6]([CH3:8])[C:5]([CH2:9][O:10][CH3:11])=[N:4][C:3]=1[CH2:2][OH:1]Participants
6
Procedure
A 1:1 mixture of 7.7 g (49 mmol) of 4-hydroxymethyl-2-methoxymethyl-1-methyl-imidazole and 5-hydroxymethyl-2-methoxymethyl-1-methyl-imidazole and 7.3 g (55 mmol) of N-chloro-succinimide was heated to 50° C. in 48 ml of ethylene glycol monoethylether and 70 ml of dioxan for 10 hours. Then the solvent was distilled off in vacuo and the crude product purified by chromatography (silica gel; methylene chloride/ethanol=99:1 to 90:10) to obtain the isomerically pure title compound. Yield: 3.4 g (36% of theory), Rf value: 0.40 (silica gel; methylene chloride/ethanol=19:1)
Workup
- distillationThen the solvent was distilled off in vacuo
- customthe crude product purified by chromatography (silica gel; methylene chloride/ethanol=99:1 to 90:10)
Sources & evidence
- ORD record
- ord-3770f4a82e524777b91fb5ee85741996
- Source dataset
- uspto-grants-2000_07
- Patent number
- US06087380
Reaction notes
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