Download PDF
Synthesis 1991; 1991(12): 1228-1230
DOI: 10.1055/s-1991-28424
paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Synthesis of Ketene S,S-Acetals from Tetraethyl Methylenebisphosphonate and Some of Its Reactions

Richard Neidlein* , Thomas Eichinger
  • *Pharmazeutisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 364, D-6900 Heidelberg, Germany
Further Information

Publication History

Publication Date:
29 April 2002 (online)

  PDF Download  Permissions and Reprints All articles of this category

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.

      >