Methyl tetrahydrophthalic anhydride synthesis
- Product Name:Methyl tetrahydrophthalic anhydride
- CAS Number:19438-64-3
- Molecular formula:C9H10O3
- Molecular Weight:166.17
108-31-6
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Yield:19438-64-3 99%
Reaction Conditions:
with C3H3F6NO10S3*CHF3O3S at 50; for 2.5 h;Diels-Alder Cycloaddition;Reagent/catalyst;
Steps:
2 Application Example 2Hexafluoroisopropylsulfonyl-disulfonate ammonium trifluoromethanesulfonate ionic liquid(3 ionic liquid) catalyst for the synthesis of methyl tetrahydrophthalic anhydride, the specific steps are:
In a three-vial bottle, 0.12 mole of isoprene was added, and then 0.1 mole of maleic anhydride was added.Add 0.001mol ionic liquid, heat at 50°C, react for 2.5h,The product was dissolved in acetone for gas chromatography mass spectrometry detection.The GC-MS spectra are shown in Figure 1. From left to right are solvent acetone.(retention time 0.7), isoprene (retention time 2.5),Methyltetrahydrophthalic anhydride (retention time 32.5).Maleic anhydride conversion rate of 99%, the yield of 99%.
References:
Chinese Academy Of Sciences Process Engineering Institute;Zhao Guoying;Wan Yameng;Zhang Suojiang;Wang Aoyun;Zhang Zhenhua;Xu Zichen CN107602424, 2018, A Location in patent:Paragraph 0230; 0231; 0232; 0233; 0234
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19438-61-0
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