化工社化工社 化学情報印刷レポート · 研究参考用
1-Butanamine, N,N-dibutyl-, hydrochloride (1:1) → 3,4-Bis(p-toluyloxy)-alpha-[(tert-butylamino)methyl]benzyl alcohol
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 1-Butanamine, N,N-dibutyl-, hydrochloride (1:1) | HCID 80570 | — |
| 反応物 | Sodium borohydride | HCID 4311764 | — |
| 反応物 | 3,4-bis(p-toluyloxy)phenyl N-(tert-butyl)aminomethyl ketone hydrochloride | HCID 70467733 | — |
| 生成物 | 3,4-Bis(p-toluyloxy)-alpha-[(tert-butylamino)methyl]benzyl alcohol | HCID 21319975 | 90% |
反応手順
The crude products of the foregoing examples containing minor amounts of acid-acceptor amine hydrochloride can be used without further purification in the reduction step to produce the corresponding phenylethanolamine compound. For example, a sample of 3,4-bis(p-toluyloxy)phenyl N-(tert-butyl)aminomethyl ketone hydrochloride containing about 6 percent of tributylamine hydrochloride was reduced with sodium borohydride to give 3,4-bis(p-toluyloxy)-α-[(tert-butylamino)methyl]benzyl alcohol (bitolterol) in greater than 90% yield.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04614830 |
| 出典データセット | uspto-grants-1986_09 |
| ORD ID | ord-4380dbd7b8154b2390a8d98f80cae45b |
| 出典メモ | uspto-grants-1986_09 |