Synthesis of ketene S,S-acetals from tetraethyl methylenebisphosphonate and some of its reactions

DOI: 10.1055/s-1991-28424

Source and publish data:

Synthesis p. 1228 - 1230 (1991)

Update date:2022-08-05

Topics:

Authors:

Neidlein

Eichinger

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Article abstract of DOI:10.1055/s-1991-28424

Tetraethyl 2,2-bis(alkylthio)ethenediylidenebisphosphonates are synthesized by an efficient one-pot reaction of the salt of tetraethyl methylenebisphosphonate in tetrahydrofuran with carbon disulfide and alkyl halides. A 1,3-dithietane derivative is obtained with 1,2-dibromo-1,2-diphenylethane.

Full text of DOI:10.1055/s-1991-28424

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Product name:[{9-[Bis-(diethoxy-phosphoryl)-methylene]-7,11-dihydro-1H,5H-2,4,8,10-tetrathia-benzo[1,2;4,5]dicyclohepten-3-ylidene}-(diethoxy-phosphoryl)-methyl]-phosphonic acid diethyl ester

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