Abstract The synthesis of novel 6-substituted-2,10-dichloro-12H-dibenzo[d,g][1,3,2]dioxaphosphocin 6-oxides is described along with IR, 1H, 13C, and 31P NMR spectral data. Phosphorus couplings of 5 J PH, 2 J POC and 3 J POCC were determined. An appraisal of the data in total did not allow unequivocal differentiation between a boat-boat, boat-chair, distorted boat, or twist boat conformation for the eight-membered ring of the dioxaphosphocin 6-oxides. A few members of this family were evaluated for toxicity in the insect P. americana.

Novel 6-substituted-2,10-dichloro-12H-dibenzo[d,g][1,3,2]dioxaphosphocin 6-oxides show synthesis, NMR spectral data, and insecticidal activity against P. americana.

Phosphorus Sulfur and Silicon and The Related Elements

SYNTHESIS, 1H, 13C, 31P NMR ANALYSIS, AND INSECTICIDAL ACTIVITY OF MEMBERS CONTAINING EXTERNAL P—O OR P—N BONDS IN 6-SUBSTITUTED-2,10-DICHLORO-12H-DIBENZO[d,g][1,3,2]DIOXAPHOSPHOCIN 6-OXIDES

Paper

SYNTHESIS, 1H, 13C, 31P NMR ANALYSIS, AND INSECTICIDAL ACTIVITY OF MEMBERS CONTAINING EXTERNAL P—O OR P—N BONDS IN 6-SUBSTITUTED-2,10-DICHLORO-12H-DIBENZO[d,g][1,3,2]DIOXAPHOSPHOCIN 6-OXIDES

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