1,4-Dioxane
CAS number: 123-91-1
1,4-Dioxane is a likely human carcinogen and has been found in groundwater at sites throughout the United States. 1,4-Dioxane is a clear liquid that easily dissolves in water. It is used primarily as a solvent in the manufacture of chemicals and as a laboratory reagent.
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![O-Arylation of 3-phenylpropanol (1a) and phenol (1ab) by triarylsulfonium triflates in the presence of CsOH.[a] [a] Reaction conditions: 1a or 1ab (0.2 mmol), 2 (0.3 mmol), CsOH (0.3 mmol), 1,4-dioxane (2 mL), 508C, N2, 24 h. Isolated yield. [b] Toluene (2 mL) as solvent and at 808C. [c] 808C. [d] 0.4 mmol scale (1ab).](http://www.wlxkc.cn/picture/1296374_13.png)
O-Arylation of 3-phenylpropanol (1a) and phenol (1ab) by triarylsulfonium triflates in the presence of CsOH.[a] [a] Reaction conditions: 1a or 1ab (0.2 mmol), 2 (0.3 mmol), CsOH (0.3 mmol), 1,4-dioxane (2 mL), 508C, N2, 24 h. Isolated yield. [b] Toluene (2 mL) as solvent and at 808C. [c] 808C. [d] 0.4 mmol scale (1ab).
Synthesis of triazine dimers 1–47. Reagents and conditions: (a) diaminoalkanes/diaminobenzene/piperazine, DIPEA, dry dioxane, 110 °C.
Further transformations of the products.
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