반응식
Cl[P:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[C:5]2[CH:12]=[CH:13][CH:14]=[CH:15][C:4]=2[O:3]1.[OH2:16]>>[O:16]=[PH:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[C:5]2[CH:12]=[CH:13][CH:14]=[CH:15][C:4]=2[O:3]1참가 물질
3
실험 절차
Another reference (German Offenlegungsschrift 27 30 371, pp. 18 and 19) describes that 6-chloro-(6H)-dibenz-oxaphosphorin at 130° C. is combined with a large amount of water, the hydrolysis is carded out, the water is distilled off under reduced pressure and the 6-oxo-dibenzoxaphosphorin is then obtained. The operation described is technically very problematical and can hardly be carried out on a large scale, since water vaporizes at 130° C. and cools the reaction mixture. It is therefore necessary to work under increased pressure if the temperature of 130° C. is to be maintained and thus uncontrolled crystallization is to be prevented, since the target compound melts significantly above the boiling point of water.
후처리
- customat 130° C.
- distillationthe water is distilled off under reduced pressure
출처 및 근거
- ORD 기록
- ord-090eeda62bea41b787534ba5695ec87e
- 출처 데이터셋
- uspto-grants-1997_07
- 특허 번호
- US05650530
연결된 노트
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