The Synthesis of Diethyl p-Tolylsulphonylethynylphosphonate and Related Acetylenes, and their Reactions with Nucleophiles, Pyridinium-1-dicyanomethylides, and Dienes
Diethyl p-tolylthioethynylphosphonate (10) was synthesized from diethyl ethynylphosphonate (7) by two routes and oxidized to the corresponding sulphoxide (11) and sulphone (12).The sulphone showed no triple bond i.r. absorption, but a strong Raman band, a
Acheson, R. Morrin,Ansell, Peter J.
p. 1275 - 1282
(2007/10/02)
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