化工社化工社 化学情報印刷レポート · 研究参考用
Water → (R)-2-phenyl-1,2-propanediol
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | Alpha-Methylstyrene | HCID 7407 | — |
| 反応物 | Potassium Carbonate | HCID 11430 | — |
| 触媒 | Platinum | HCID 23939 | — |
| 触媒 | Osmium Tetroxide | HCID 30318 | — |
| 溶媒 | tert-Butanol | HCID 6386 | — |
| 生成物 | (R)-2-phenyl-1,2-propanediol | HCID 6951538 | — |
反応手順
A divided glass H-cell, as described in example 6.1 but smaller in size (50 ml in anode and cathode compartment), is charged in the cathode with 40 mL, 5% H3Po4 solution and in the anode with K2CO3 (4.1 g, 30 mmol), H2O (25 mL), t-BuOH (25 mL), chiral ligand, PHAL-DHQD (390 mg, 0.5 mmol), OsO4 (0.196M in toluene, 2.6 mL, 0.5 mmol) and finally α-methylstyrene (1.2 g, 10 mmol). The mixture is electrolyzed at 20° C. and 0.5 V (vs Ag/AgCl) working potential using platinum foils as the anode and cathode. After ca. 2000 coulombs of electricity is consumed, the reaction is worked up as Example 6.7 to give (R)-2-phenyl-1.2-propanediol in good yield.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05419817 |
| 出典データセット | uspto-grants-1995_05 |
| ORD ID | ord-9d400f28fed1457783e933c212b06015 |
| 出典メモ | uspto-grants-1995_05 |