Boyle NA. Difluoromethylenediphosphonate: A Convenient, Scalable, and High-Yielding Synthesis.
Org Lett 2006;
8:187-9. [PMID:
16408871 DOI:
10.1021/ol0522889]
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Abstract
[reaction: see text] Since the first disclosure of difluoromethylenediphosphonate, 2, almost 40 years ago, interest in this compound has flourished in several research areas. In this paper, we present a convenient, high-yielding (99% overall) method for the preparation of milligram to multigram quantities of 2 (as the bis(tributylammonium salt, 2b) in a solid form that is easy to handle.
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