참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Sulfuric Acid | HCID 1118 | — |
| 반응물 | Sodium Carbonate | HCID 10340 | — |
| 반응물 | 4'-Iodobiphenyl-4-carboxylic acid | HCID 816730 | — |
| 반응물 | 4-Pentyloxyphenylboronic Acid (contains varying amounts of Anhydride) | HCID 4684888 | — |
| 촉매 | HCID 178418476 | HCID 178418476 | — |
| 용매 | Ethylene Glycol | HCID 174 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | 158938-08-0 4-N-Pentoxyterphenyl-carbonic acid | HCID 9798987 | — |
반응 단계
162 g of 4′-iodobiphenyl-4-carboxylic acid are introduced together with 129 g of glycol ester of 4-n-pentoxyphenylboronic acid and 79.5 g of sodium carbonate into 1.5 l of ethylene glycol and, while stirring vigorously, 350 mg of PdCl2(PPh3)2 are added and the mixture is stirred at 80° C. for 6 hours. The hot reaction mixture is cautiously poured into a mixture of 150 g of 37% strength sulfuric acid and 1,000 g of water, and the mixture is heated at 90-100° C. for 30 minutes. After filtration and washing with water, the crude product is dried at 80° C./100 mbar and then recrystallized from dimethylacetamide. This affords after drying 141 g (78%) of 4″-n-pentoxy-[1,1′:4′,1″]-terphenyl-4-carboxylic acid with a purity of >99%.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US06762315B1 |
|---|
| 출처 데이터셋 | uspto-grants-2004_07 |
|---|
| ORD ID | ord-7302e696f6b94e79af46aea3d8bdc988 |
|---|
| 출처 메모 | uspto-grants-2004_07 |
|---|
