Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Oxygen → Tetrahydrophthalic anhydride
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Oxygen | HCID 977 | — |
| 반응물 | 4-tert-Butylcatechol | HCID 7381 | — |
| 반응물 | Maleic Anhydride | HCID 7923 | — |
| 반응물 | Propanoic acid, 3,3'-thiobis-, didodecyl ester | HCID 31250 | — |
| 생성물 | Tetrahydrophthalic anhydride | HCID 6810 | — |
반응 단계
3Me--THPA was produced by a combination of replacement and liquid phase aeration method. Thus, the reaction procedure of Example 8 was repeated except that the respective amounts of maleic anhydride, radical polymerization inhibitor p-tert-butylcatechol and auxiliary polymerization inhibitor dilauryl thiodipropionate were melted at 60° C. and the internal atmosphere was replaced with nitrogen gas containing 1 volume % of oxygen. Then, the same oxygen-containing nitrogen gas was introduced into the liquid phase at a rate of 5 ml/min. The procedure gave 164 g of 3Me--THPA. The investigation revealed no gels in the product.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05237074 |
| 출처 데이터셋 | uspto-grants-1993_08 |
| ORD ID | ord-7bc8c235cc764fa08617ab7cf44ca74e |
| 출처 메모 | uspto-grants-1993_08 |