Reaction of non stabilised phosphonium ylides with lactones
Y Brunel, G Rousseau
Index: Brunel, Yves; Rousseau, Gerard Tetrahedron Letters, 1996 , vol. 37, # 22 p. 3853 - 3856
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Citation Number: 4
Abstract
General procedure: under argon, a three-neck round-bottom flask was charged with 1.83 g (0.046 mole) of sodium hydride (used as a 60% dispersion in oil washed three times with dry hexane before use) and 20 ml of dry DMSO. The mixture was heated at 70°C until the gas evolution occurred. After cooling at 0°C a solution of 19.3 g (0.054 mole) of methyltriphenylphosphonium bromide in 70 ml of DMSO was transferred. After 10 min at rt. the lactone (0.0135 mole) ...
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