Bis[2-(diphenylphosphino)phenyl] ether
CAS number: 166330-10-5
Bis[2-(diphenylphosphino)phenyl] ether, also known as DPEphos, is a diphosphine ligand commonly used in inorganic and organometallic chemistry. It features a diphenyl ether backbone with two diphenylphosphino groups attached.
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![Synthetic routes to prepare compound ASDSN. (i) K2CO3, Me–I, acetone, 50 ℃, 6 h. (ii) Bu4NBr (5 mol%), HNO3 (15% w/w), dichloroethane, 20 ℃. (iii) AcOH, H2O2, CH2Cl2, 0 ℃-reflux, 2 h. (iv) I2, dioxane/pyridine, 0 ℃ to rt, 3 h. (v) LiAlH4. (vi) PCC. (vii) Ph3PMeBr, KOtBu, THF, rt, 18 h. (viii) Pd(OAc)2 (1.2–1.8 mol%), bis[(2-diphenylphosphino)phenyl] ether (DPEPhos) (2.5–3.6 mol%), K2CO3, DMF, 120 ℃, 6–12 h.](http://www.wlxkc.cn/picture/3214957_05.png)
Synthetic routes to prepare compound ASDSN. (i) K2CO3, Me–I, acetone, 50 ℃, 6 h. (ii) Bu4NBr (5 mol%), HNO3 (15% w/w), dichloroethane, 20 ℃. (iii) AcOH, H2O2, CH2Cl2, 0 ℃-reflux, 2 h. (iv) I2, dioxane/pyridine, 0 ℃ to rt, 3 h. (v) LiAlH4. (vi) PCC. (vii) Ph3PMeBr, KOtBu, THF, rt, 18 h. (viii) Pd(OAc)2 (1.2–1.8 mol%), bis[(2-diphenylphosphino)phenyl] ether (DPEPhos) (2.5–3.6 mol%), K2CO3, DMF, 120 ℃, 6–12 h.
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