Chlorine → 4-Chlorophthalic anhydride

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[Cl:1][C:2]1[CH2:3][CH:4]2[C:9](=[O:10])[O:8][C:6](=[O:7])[CH:5]2[CH2:11][CH:12]=1.ClCl>>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[O:10])[O:8][C:6](=[O:7])[C:5]2=[CH:11][CH:12]=1

참가 물질

반응물 2

HCID 24526Chlorine

HCID 857655-Chloro-3a,4,7,7a-tetrahydro-1,3-isobenzofurandione

생성물 1

HCID 670444-Chlorophthalic anhydride수율 12%

반응 조건

온도: 200 °C

실험 절차

To a three necked 50 ml round bottom flask, fitted with a stirrer, gas inlet tube and connected to a trap system, for recovery of products, was placed 20.38 g of 4-chloro-1,2,3,6-tetrahydrophthalic anhydride. The reactor was heated to 200° C. and illuminated with a 15 watt black, blue bulb (GE F15T8-BLB) with a transmission range of 300-400 nm and a maximum at 375 nm. An excess flow of chlorine was begun and the reaction continued for 8 hours. The reactor was purged with nitrogen and sampled. A 12% yield of 4-chlorophthalic anhydride was obtained.

후처리

customTo a three necked 50 ml round bottom flask, fitted with a stirrer, gas inlet tube
customconnected to a trap
customilluminated with a 15 watt black
customThe reactor was purged with nitrogen
aliquotsampled

출처 및 근거

ORD 기록: ord-aa08a47403c7490f80d1e5a2b52b64f6
출처 데이터셋: uspto-grants-1991_03
DOI: 10.6084/m9.figshare.5104873.v1
특허 번호: US05003088

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