Maleic Anhydride → 5,6-Dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
반응식
[CH3:1][C:2]([C:4]([CH3:6])=[CH2:5])=[CH2:3].[C:7]1(=[O:13])[O:12][C:10](=[O:11])[CH:9]=[CH:8]1>C1C=CC=CC=1>[CH3:3][C:2]1[CH2:1][CH:8]2[C:7](=[O:13])[O:12][C:10](=[O:11])[CH:9]2[CH2:5][C:4]=1[CH3:6]참가 물질
4
실험 절차
A mixture of 2,3-dimethyl-1,3-butadiene (10 g; 0.122 mol), maleic anhydride (11.9 g; 0.122 mol) and benzene (30 ml) was stirred at room temperature for 10 hours, followed by removal of insoluble materials by filtration. The filtrate was concentrated under reduced pressure to give the objective compound (18.66 g). Yield, 86.6%. M.P., 73°-74° C.
후처리
- customfollowed by removal of insoluble materials by filtration
- concentrationThe filtrate was concentrated under reduced pressure
출처 및 근거
- ORD 기록
- ord-e06c0e891ea84e64bc5990e652bd98a4
- 출처 데이터셋
- uspto-grants-1988_05
- 특허 번호
- US04745117
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