Tetrahedron

Synthesis of all-cis-3-(2-diphenylphosphinoethyl)-1, 2, 4-tris (diphenylphosphinomethyl) cyclopentane (Ditricyp) from dicyclopentadiene

I Kondolff, M Feuerstein, H Doucet, M Santelli

Index: Kondolff, Isabelle; Feuerstein, Marie; Doucet, Henri; Santelli, Maurice Tetrahedron, 2007 , vol. 63, # 38 p. 9514 - 9521

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Citation Number: 24

Abstract

A new tetraphosphine, all-cis-3-(2-diphenylphosphinoethyl)-1, 2, 4-tris ( diphenylphosphinomethyl) cyclopentane (Ditricyp), has been synthesised in seven steps from commercially available dicyclopentadiene. The ozonolysis of dicyclopentadiene occurred first on the double bond of the bicycloheptene moiety. A very high chemoselective ozonolysis was observed at− 60° C leading to the diol after reductive treatment. From this ...

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