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ChemInform Abstract: The Synthesis and Reactivity of Alkylamino-Substituted Methylenediphosphonates.

โœ Scribed by Ding Quan Qian; Xiao Dong Shi; Ru Zhen Cao; Lun Zu Liu

Publisher
John Wiley and Sons
Year
2010
Weight
34 KB
Volume
30
Category
Article
ISSN
0931-7597

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โœฆ Synopsis

The Synthesis and Reactivity of Alkylamino-Substituted Methylenediphosphonates.

-The preparation of title compounds (III) (15 examples) in acceptable yields by reaction of diethyl phosphite (II) with Vilsmeier reagents is described. Appropriate methylenediphosphonates (III) react with aldehydes under Wittig-Horner conditions to furnish mixtures of isomeric vinylphosphonates (V)/(VI), and undergo alkylation with alkyl halides [โ†’(VIII)]. -(QIAN,

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