Bisphosphine dioxides

Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus containing

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C07F 953

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049028332

ABSTRACT:
A process for the production of organic bisphosphine dioxides from organic bisphosphonates. The organic bisphosphonate is reacted with a Grignard reagent to give relatively high yields of the organic bisphosphine dioxide.

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Clarke et al., "Synthesis and Physical Properties of Chlorodi (o-Tolyl) Phosphine, Lithium Di(o-Tolyl) Phosphide and Diphosphine Series (o-Tolyl).sub.2 P(CH.sub.2).sub.n P(o-Tolyl)", J. Organometal. Chem., 1981 51-59.

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