Citation: un Ran CHENG, Jia WEN, Rut Lian SHAO, Huan Yan CAO, Run Qiu HUANG. Synthesis of Asymmetric 4H-1, 3, 2-Benzodioxaphosphorin 2-Sulfides from Intramolecular Cyclization Reaction[J]. Chinese Chemical Letters, ;1999, 10(9): 731-732. shu

Synthesis of Asymmetric 4H-1, 3, 2-Benzodioxaphosphorin 2-Sulfides from Intramolecular Cyclization Reaction

Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071

Received Date: 20 January 1999

Fund Project: This project was supported by the Natural Science Foundation of Tianjin (983602711).

Asymmetric 6-substituted-2-methoxy-4-(2,4-dichlorophenyl)-4H-1,3,2-benzodioxa-phosphorin 2-sulfides were prepared from intramolecular cyclization. The diastereomers were separated by column chromatography and fractional crystallization. Their structures were characterized on the basis of ¹H NMR, ³¹P NMR and x-ray diffraction analysis.
- 4H-1,3,2-benzodioxaphosphorin,
- diastereomer,
- intramolecular cyclization reaction
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