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Acetic Acid → 3,5-Di-tert.butyl-4-hydroxybenzyl-malonic acid-bis(2,2,6,6-tetramethyl-4-piperidinyl)ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Acetic Acid | HCID 176 | — |
| 反応物 | Lithium amide | HCID 24532 | — |
| 反応物 | Phenol, 4-[(dimethylamino)methyl]-2,6-bis(1,1-dimethylethyl)- | HCID 66609 | — |
| 反応物 | Bis(2,2,6,6-tetramethylpiperidin-4-yl) propanedioate | HCID 1244568 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 生成物 | 3,5-Di-tert.butyl-4-hydroxybenzyl-malonic acid-bis(2,2,6,6-tetramethyl-4-piperidinyl)ester | HCID 14093876 | — |
反応手順
26 g (0.068 mole) of bis-(2,2,6,6-tetramethyl-4-piperidinyl) malonate and 17.8 g (0.068 mole) of N-(3,5-di-tert.butyl-4-hydroxybenzyl)dimethylamine are dissolved in 200 ml of toluene. After the addition of 0.5 g of lithium amide, the mixture is refluxed for 3 hours. After cooling, the mixture is neutralised with 1.5 ml of 1% acetic acid, and the organic phase repeatedly washed with water. After drying over Na2SO4, the solution is concentrated in vacuo to obtain, as oily residue, 3,5-di-tert.butyl-4-hydroxybenzyl-malonic acid-bis(2,2,6,6-tetramethyl-4-piperidinyl)ester.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04221701 |
| 出典データセット | uspto-grants-1980_09 |
| ORD ID | ord-a6dd02c1463b481ca35a80ea5c2279cf |
| 出典メモ | uspto-grants-1980_09 |