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8428318 
Journal Article 
Synthesis and Reactions of (4,5-Dicarbomethoxy-1,3-dithiolyl)tributylphosphonium Tetrafluoroborate 
Sato, M; Gonnella, NC; Cava, MP 
1979 
Yes 
Journal of Organic Chemistry
ISSN: 0022-3263
EISSN: 1520-6904 
AMER CHEMICAL SOC 
WASHINGTON 
44 
6 
930-934 
English 
WOS:A1979GN27300008 
The title phosphonium salt (7) is readily prepared by the reaction of dimethyl acetylenedicarboxylate and fluo-roboric acid with the adduct of carbon disulfide and tributylphosphine and serves as a stable precursor of the corresponding unstable phosphorane (6). A comparative study of the use of salt 7 in the Wittig reaction with various aldehydes and ketones is described. Attempts to effect the complete dehydrogenation of the bisfulvene 21 from cyclo-hexane-l, 4-dione were unsuccessful. © 1979, American Chemical Society. All rights reserved.