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Bromide ion → (2-Chloro-5-nitrobenzyl)(triphenyl)phosphonium bromide
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Bromide ion | HCID 259 | — |
| 反応物 | Hydrogen Bromide | HCID 260 | — |
| 反応物 | Triphenylphosphine | HCID 11776 | — |
| 反応物 | 2-Chloro-5-nitrobenzyl alcohol | HCID 555722 | — |
| 溶媒 | Acetic Acid | HCID 176 | — |
| 溶媒 | Methane, dichloro-, compd. with benzene (1:1) | HCID 23443464 | — |
| 生成物 | (2-Chloro-5-nitrobenzyl)(triphenyl)phosphonium bromide | HCID 11844221 | 63% |
反応手順
Bromination of (2-chloro-5-nitrophenyl)methanol with 30% HBr in acetic acid, followed by reaction of the crude bromide with triphenylphosphine, using the procedure described in example 112, gave the phosphonium salt (564) (63%) as a white solid, mp (CH2Cl2/benzene) 239–243° C. 1H NMR (CDCl3) δ 8.22 (br s, 1H), 8.07 (br d, J=8.7 Hz, 1H), 7.87–7.65 (m, 15H), 7.41 (d, J=8.9 Hz, 1H), 5.80 (d, J=14.8 Hz, 2H). Found: C, 58.56; H, 3.93; N, 2.73. C25H20BrClNO2P requires C, 58.47; H, 3.98; N, 2.66.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07094798B1 |
| 出典データセット | uspto-grants-2006_08 |
| ORD ID | ord-5ff65fcfe3074652ab6aafbfe9be302d |
| 出典メモ | uspto-grants-2006_08 |