N. Gusarova, S. Arbuzova, S. Shaikhudinova
Aug 1, 2001
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Influential Citations
12
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Journal
Phosphorus, Sulfur, and Silicon and the Related Elements
Abstract
Abstract White phosphorus readily reacts with 2-chloro-5-(chloromethyl)thiophene under phase-transfer conditions (KOH, water, dioxane, benzyltriethylammonium chloride, 50–52°C, 3 h) to form tris[(5-chloro-2-thienyl)methyl]phosphine oxide in good yield. This new phosphine oxide undergoes the Wittig - Homer reaction with benzaldehyde (NaNH2/THF system) leading to 2-chloro-5-|(E)-2-phenylethenyllthiophen and bis[(5-chlom-2-thienyl)methyl]phosphinic acid.