Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Acetic Acid → 3,5-Di-tert.butyl-4-hydroxybenzyl-malonic acid-bis(2,2,6,6-tetramethyl-4-piperidinyl)ester
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Acetic Acid | HCID 176 | — |
| 반응물 | Lithium amide | HCID 24532 | — |
| 반응물 | Phenol, 4-[(dimethylamino)methyl]-2,6-bis(1,1-dimethylethyl)- | HCID 66609 | — |
| 반응물 | Bis(2,2,6,6-tetramethylpiperidin-4-yl) propanedioate | HCID 1244568 | — |
| 용매 | Toluene | HCID 1140 | — |
| 생성물 | 3,5-Di-tert.butyl-4-hydroxybenzyl-malonic acid-bis(2,2,6,6-tetramethyl-4-piperidinyl)ester | HCID 14093876 | — |
반응 단계
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 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.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US03993655 |
| 출처 데이터셋 | uspto-grants-1976_11 |
| ORD ID | ord-8fc656c33893467281e6e931b34dddb2 |
| 출처 메모 | uspto-grants-1976_11 |